XAML Attribute Formatting

Is it just me or does the default setting for the XAML editor in Visual Studio make working with XAML more difficult?

If you want to make your life easier, change the Tools->Options setting to ‘Position each attribute on a separate line’.

What difference does it make? As you can see, below are two text boxes with all of the same properties set….

No wait, you can only see the properties of one, to see the properties of the other one you need to scroll horizontally, no problem I’ll just use my mouses horizontal scroll wheel….

No wait, it doesn’t have one of those, only a vertical scroller. Damn those mouse makers!

In C# it is possible to create a new object and set all of its properties all on one mega long horizontal line, but we don’t. Why? Because the code is more readable when you break it up vertically over a few lines. You can see all of the properties at once and you usually don’t need to scroll…and if you do you have a vertical scroll wheel on the mouse 🙂

ClickOnce Master Build

Previously I have posted about how to publish a ClickOnce release for multiple environments. Whilst this works well there are two reasons (that I can think of) why it is not appropriate or good enough.

First, you or your manager may be a bit of a purist in terms of releasing to Production ‘exactly’ what has been tested, specifically the exact same compiled assemblies.

Second, you may need to create a release for several different customers who each have several of their own ‘environments’ but you do not want to provide them with your source code.

Third…both of the above. 🙂

When you ‘Publish’ with MsBuild it requires the source code and it recompiles your assemblies. So how can we easily create releases for multiple environments but only Publish once? This posting offers one solution which has worked for me in the past, it’s not a complete ‘how to’ guide I just wanted to cover the idea and problems I ran into along the way.

Master Build Environment

Make sure you take a look at my previous posting as this process builds on those ideas.

One of the final steps of this process is to re-sign the setup.exe, however in order for that final step to work you have to change one of your ClickOnce deployment settings in your .csproj file.


SignManifests must be false! Otherwise the signtool gets confused when re-signing the setup.exe. Check this out for a bit more info on this known issue.

So the first thing to do is create a BuildEnvironment called Master. The configuration details of this (web service addresses or database connnection strings etc) should point to nowhere, i.e. if someone deployed this build then it should not work. Publishing this is easy just follow the steps defined in the multiple environment posting, the process of creating a release with environment specific information that is tricky.

MsBuild Changes for Master Build Publish

When you publish with ClickOnce it creates a folder ‘Application Files’ where it puts the contents of the release. The space in that file name causes a problem with MAGE when re-signing the app. Now the only way I could see to change this was to cut and paste the _CopyFilesToPublishFolder target from Microsoft.Common.Targets and modifying the _DeploymentApplicationFolderName property in my version to remove the space. I think it is a really BAD idea to change the Microsoft.Common.Targets directly so that option was ruled out immediately and as you can see in the code below, Application Files (version below already has the space removed) is a hardcoded value, not a settable property…therefore even though it is ugly, cut and paste seems the only viable solution.

	  This Target code has been cut and paste from Microsoft.Common.Targets.
	  Only ONE thing has been changed.
	  Application Files changed to ApplicationFiles (i.e. the space removed)
	  The only other way of changing that value is to modify Microsoft.Common.Targets
	  which is a really bad idea (would have to ensure this was changed on ALL machines.)

	  The space causes a problem when re-signing the app with MAGE

        <!-- Compute name of application folder, which includes the assembly name plus formatted application version.
             The application version is formatted to use "_" in place of "." chars (i.e. "1_0_0_0" instead of "").
             This is done because some servers misinterpret "." as a file extension. -->
        <FormatVersion Version="$(ApplicationVersion)" Revision="$(ApplicationRevision)" FormatType="Path">
            <Output TaskParameter="OutputVersion" PropertyName="_DeploymentApplicationVersionFragment"/>


        <!-- Copy files to publish folder -->
        <FormatUrl InputUrl="$(_DeploymentApplicationUrl)">
            <Output TaskParameter="OutputUrl" PropertyName="_DeploymentFormattedApplicationUrl"/>
        <FormatUrl InputUrl="$(_DeploymentComponentsUrl)">
            <Output TaskParameter="OutputUrl" PropertyName="_DeploymentFormattedComponentsUrl"/>

Note that the space only causes a problem with MAGE.exe, it does not cause a problem with MAGEUI.exe! MAGEUI.exe happily re-signs the release even with the space in the directory name. We cannot use MAGEUI.exe however because this process needs to be automated, if you use MAGEUI.exe someone has to run it and manually set the values…not good enough.

It took a while to figure out that the space in the dir name was causing a problem so I hope this saves someone else some time…

Creating a Release

Ok so now we have a published build that no one can use, the first place we want to release to will be QA, then from there UAT so what we need now is an automated way of creating a release configured for these environments.

Creating a release should be as easy as publishing a build, it should be a one step process.

Create a batch file ‘createRelease.bat’ which performs all of the necessary steps. Those steps are:

  1. Create or clean the ‘working’ directory.
  2. Copy the master build into the working directory.
  3. Run the MsBuild steps.
  4. Create a zip file of the new release. (not necessary just makes it a little easier to move the releases around)

Run the MsBuild Steps

Add a new target in your customized.targets file, ModifyMasterBuildForEnvironment.

<Target Name="ModifyMasterBuildForEnvironment" DependsOnTargets="SetPropertyValues; ConfigureForEnvironment; RecreateManifests" />


There are a few properties which need to be set for the resigning process.

	<Target Name="SetPropertyValues" >
		<Message Text="FullReleasePath $(FullReleasePath)" />

		<MSBuild.ExtensionPack.Framework.TextString TaskAction="Replace" OldString="$(ApplicationVersion)" OldValue="." NewValue="_">
			<Output PropertyName="buildX" TaskParameter="NewString"/>



Add your own target(s) here that does the work to configure the release for a given environment. e.g. update the config file setting database connection strings or web service urls.


Now that you have modified the published release it is no longer a valid ClickOnce release. Try to install it and it will fail. What you need to do is update and re-sign the manifests (the Application Manifest and the Deployment Manifest). You also need to update and resign the Setup.exe!

	<Target Name="RecreateManifests">

		<!-- Application manifest update and resign -->
		<Message Text="Removing .deploy suffix..." />
		<RenameFiles DirectoryPath="$(MSBuildProjectDirectory)\$(FullReleasePath)" RemoveSuffix=".deploy" IncludeSubDirectories="True" />
		<Message Text="Updating application manifest" />
		<Exec Command="mage -Update $(ApplicationManifestPath) -FromDirectory $(FullReleasePath) -ToFile $(ApplicationManifestPath)" />
		<Message Text="Adding .deploy suffix..." />
		<RenameFiles DirectoryPath="$(MSBuildProjectDirectory)\$(FullReleasePath)" AppendSuffix=".deploy" IncludeSubDirectories="True" ExcludedFiles="$(ApplicationManifestName)" />
		<Message Text="ApplicationManifestPath $(ApplicationManifestPath)" />
		<Exec Command="mage -Sign $(ApplicationManifestPath) -CertFile $(CertFileName)" />

		<!-- Deployment manifest update and resign -->
		<Message Text="Updating Deployment manifest (ProviderFullUrl=$(ProviderFullUrl))" />
		<Exec Command="mage -Update $(DeploymentManifestPath) -AppManifest $(ApplicationManifestPath) -ProviderUrl $(ProviderFullUrl)" />
		<Message Text="DeploymentManifestPath $(DeploymentManifestPath)" />
		<Exec Command="mage -Sign $(DeploymentManifestPath) -CertFile $(CertFileName) " />

		<!-- Setup.exe update and resign -->
		<Message Text="Updating $(WorkingDirectory)\Setup.exe..." />
		<Exec Command="$(WorkingDirectory)\Setup.exe /url=$(ProviderBaseUrl)" />
		<Message Text="Signing $(WorkingDirectory)\Setup.exe..." />
		<Exec Command="signtool sign /v /f $(CertFileName) $(WorkingDirectory)\Setup.exe" />


Note that before Updating the Application Manifest we have to remove the .deploy extension from the file names, then add the .deploy extension back onto the file names before Signing. (if you have configured ClickOnce to NOT append .deploy then obviously just remove these steps).

RenameFiles Task

To get the renaming behaviour I wanted I had to create my own MsBuild task. You will need to do the same, it’s a little crude as I had limited time but this is the simple little task I created….

    public class RenameFiles : Task
        public override bool Execute()
            var directory = new DirectoryInfo(DirectoryPath);
            if(directory == null)
                throw new ApplicationException(string.Format("Directory path is invalid: {0}", DirectoryPath));
            Console.WriteLine(string.Format("DirectoryPath:{0}", DirectoryPath));


            return true;

        private void ProcessDirectory(DirectoryInfo directory)
            if(! IncludeSubDirectories)

            var subs = directory.GetDirectories();
            foreach (DirectoryInfo sub in subs)

        private void RenameAllFiles(DirectoryInfo directory)
            var files = directory.GetFiles();

            if(files.Length == 0)

            foreach (FileInfo file in files)
                string fileName = file.Name;
                if (ExcludedFileList.Exists(name => name.Equals(fileName, StringComparison.InvariantCultureIgnoreCase)))
                    Console.WriteLine(string.Format("{0} is excluded from renaming.", file.Name));
                Console.WriteLine(string.Format("Renaming {0}", file.Name));

        private void RemoveExtensions(FileInfo file)
            if (string.IsNullOrEmpty(RemoveSuffix))
            file.MoveTo(file.FullName.Replace(RemoveSuffix, string.Empty));

        private void AppendExtensions(FileInfo file)
            if (string.IsNullOrEmpty(AppendSuffix))
            file.MoveTo(string.Format("{0}{1}", file.FullName, AppendSuffix));

        public string DirectoryPath { get; set; }
        public string RemoveSuffix { get; set; }
        public string AppendSuffix { get; set; }
        public string ExcludedFiles { get; set; }
        public bool IncludeSubDirectories { get; set; }

        private List<string> ExcludedFileList
                if (excludedFileList == null)
                    excludedFileList = CommonFunctions.CreateListFromCommaSeparatedString(ExcludedFiles);
                return excludedFileList;
        private List<string> excludedFileList;


There are a number of other little steps we do to make this release process work here but these are really specific to how we want it to work. What I have outlined above is the core steps involved including some problems you will face and their solutions. I hope this posting helps you get over the most challenging of the hurdles you will face in setting a smooth ‘Master Build’ release process but there is still alot of extra steps you will need to create yourself to get it working end to end.

One thing I would recommend is, once you have a working createRelease.bat (note it doesn’t have to be a batch file, could be an exe or powershell or whatever works best in your situation) then create a createReleaseALL.bat file. In there make n calls to createRelease.bat…one for each environment you need to create releases for. That way if you have a dozen environments you can still create a release for all of them with a one step process 🙂

I have had to do this fairly quickly so if something is not clear please let me know and I will see if I can improve the post over time.

Final note – It does take time to set this up and get it working correctly, but it is so worth it! Over time you will save much more time than you spent setting it up, guaranteed!

Additional Resources

A few links which helped me to piece this puzzle together…

ClickOnce with bootstraper setup.exe need to change URL without any build


Batch File Error

Weird Characters Causing Batch File Error

is not recognized as an internal or external command, operable program or batch file

That’s the error I was getting, weird considering the only thing (after removing everything else) in the file was @ECHO OFF. The ‘weird’ characters are shown in the little snippet below

After a bit of head scratching I opened notepad++, switched on ‘Show all characters’…nothing strange there. I had seen this before but I can never remember….then I did! Remember that is, the problem was the file, when it was created (by visual studio…as a txt file), was created with UTF-8 encoding, needs to be ANSI for batch files (or at least it can’t be UTF-8).

Green indicates ‘good’ encoding for batch files, red bad.

With notepad++ you can see what the encoding is (under Format) and change it. I changed my batch file to ANSI and voila it works!

I’ve blogged it so I can remember next time 🙂

Avoid Data Loss – Version Upgrade with ClickOnce

Avoid Data Loss when Upgrading App Version

If you have an occassionally connected smart client, how do you ensure that your clients do not lose any data when they upgrade the application version? This posting has a tip about the UpdateMode property that helps with this question.

We use the Disconnected Service Agent (DSA) to help manage the occassionally connected scenarios. The DSA queues services calls in a local SQL Compact Database, the items in the queue get sent when a network connection is detected.

The Problem Scenario

But there is a problem with the following scenario:

1. User processes data in disco mode. Closes the application.
2. We put a new release on the server.
3. User re-connects to the network then starts the app.
4. ClickOnce advises the user that there is a new releases and asks if they want to upgrade or skip. (at this point there are queued service calls in the local database)

5. User chooses one of the following paths

Skip (good path)

– App starts with the old version
– Data captured in disco mode is sent to the server
– All good! n days later they will be prompted to upgrade their version again (define number of days in your .csproj)

Upgrade (bad path)

– Upgrade is downloaded from the server
– Local version is upgraded, which equates to a new install of the new release (and therefore a new local database)
– App starts with the new version
– Data captured in disco mode is lost, the new version has a new database.

So data loss can be avoided if the user chooses the right path, i.e. skips the upgrade the first time. But the last thing you want to do is rely on the user to make the right choice, if one path leads to data loss it’s really our fault as the developers for making the option available. So how do we take away the option?

ClickOnce UpdateMode

The problem scenario described above will only be an issue if you have set the UpdateMode property to ‘Foreground’.

UpdateMode may either be Foreground or Background. If it is set to Foreground the prompt above will appear when ClickOnce detects a new version and before the application starts. If it is set to Background, if ClickOnce detects a new version it:

  1. Starts the app with the currently installed version
  2. Downloads the new version, ready to go for the next restart.

Importantly what it means is that the first time they reconnect after working in disco mode, the upgrade will automatically be skipped, they’ll login with the old version and the captured data will be sent to the server. Then next time they start the app they will then be prompted to upgrade.

The ‘Background’ mode has the (minor) added advantage of the new version being downloaded in the background. In Foreground mode the user must wait for the download to complete when they click Upgrade.

So unless you have a very strong business case for it using Foreground, I’d recommend always setting the UpdateMode to Background!

Finding a Memory Leak in a .Net Application

Do You Have a Leak?

What do you do when you think your application has a memory leak?

I’m sure there are many options but this posting is about my experience with Red Gates ANTS memory profiler 5.1.

About Memory Management and the GC

There have been books written on this so I’m not going to attempt to explain. However I can’t stress enough how important it is to have at least a basic understanding about how the Garbage Collector works.

To compliment their products Red Gate have created a series of easy to understand on-line video’s about .Net Memory Management nicely broken down into several 5-10 minutes segments. These video’s are FREE so watch them!

If the video’s are not in depth enough for you, any article on the subject by Jeffrey Richter should satisfy your need for detailed explanations. Start with this one.

My Leak

Every time I opened and closed one of my controls, which was getting opened in a modal window, the memory used by the application increased and never went back down again. Which is weird because doesn’t .Net handle all memory management for me?

Do it does not.

So what is going on? The control in question has a dispose method, there’s nothing really tricky going on (no database connections etc) so how do I find out exactly what is causing the leak?

Finding the Leak

Enter ANTS memory profiler. I fire up the profiler, select my .exe and click ‘Start Profiling’.


The app starts like normal but now the profiler has it under a microscope. Expect your app to run more slowly and make sure you have plenty of RAM.

I navigate to the screen where I can ‘launch’ the control that is leaking, then click ‘Take Memory Snapshot’.

Then I open and close the modal window say six times then click ‘Take Memory Snapshot’ once more.

Now we have two memory snapshots which we can compare. Stop Profiling for now, two is enough.

Click ‘Class List’, then in the grid click on the ‘Instance Diff (+/-)’ column header to sort by instance differences.

What we can clearly see now is a list of objects that are ‘alive’ in the program. What we care about is the difference in live instances from the first snapshot to the second. The ‘Instance Diff’ column provides this info. Now if we have a leak we should see an extra 6 live instances for our leaky control. So scroll down to the group of +6 items.

There are a couple of things of interest here in the profiler. First is yes we can see an extra six instance of our leaky control. Secondly, notice that ANTS puts your controls in bold. In this case we are looking for a specific problem but if you wanted to check for general memory leaks you can easily use the app for a while then scroll down until you see which of your objects is regularly increasing its instance count.

Ok great, we know it leaks, now what?

Dig a Little Deeper

Highlight the leaky object and click Instance List.

That will then show all 6 instance, just select one then click the ‘Object Retention Graph’ button.

In my case the graph appears empty, until I uncheck the ‘Hide’ box.

Now there’s some useful info…

In fact this tells me that there are several KeyEventHandlers that are stopping the GC from collecting my control.

Cool so back to the code and I add some code to unregister the handlers in the Dispose method.

_previousButton.Click -= PreviousButtonClick;
 _familyNameText.KeyDown -= Navigate;
 _givenNamesText.KeyDown -= Navigate;

Rebuild the solution and re-run the profiler. Take the initial snapshot, open close the leaky form half a dozen times, take the second snapshot.


Now there are no more live instances of the leaky control! Our memory leak has been resolved.

Very easily!


It is almost certain that somewhere in your application there is a memory leak. With the right tool finding and resolving these leaks can be really easy, it just takes a little bit of time to familiarise yourself with the way the tool works.

The tools aren’t cheap but for any commercial application they are most definately worth the money. In this posting I used ANTS profiler from Red Gate, I am sure there are other tools out there that also do a great job, I just haven’t had the opportunity to use them. ANTS though is excellent (and no I do not have any association with them…beyond having bought a licence).

Events wired up to their handlers are often the ‘hidden’ cause of leaks. But even those of us who know how to manage memory in .Net often forget to do the right thing for whatever reason…usually time pressures. So I’d recommend explicitly building in some time into your project schedule to go hunting for memory leaks, find them before they go into production and everyone will sleep easier at night 🙂

Software Project Failure

A How-To Guide

This is a posting for all software development or project managers who cannot stand their job, detest their company, hate their life or any combination of all three and who are actively seeking revenge against all who have made their life so miserable.

One simple means of getting the revenge you crave, of exacting pain and torment on those around you is to guide your development project to failure and I’m here to tell you some simple little things you can do to your developers that will almost guarantee your failure…

Cast Them Into a Dark Dingy Dungeon

The first thing you need to do to your developers is the worst thing you can do to your developers.

Restrict internet access.

Simply claim to your manager that your team wastes too much time on the internet so a restricted policy is required. Tell them to lock down access to all sites except those authorized by you personally.

Then don’t authorize any except Google…that way your team may still search for answers to their technical question but never get to the actual answers (evil laugh). Of course, tell them you are talking to your management to have this restriction removed.

If that is not possible, simply ensure that your team has the exact same restrictions as the rest of the company, that is usually enough to cause major frustration, especially if they cannot download anything (they like to download all sorts of helpful things).

Gouge Their Eyes Out With a Stick

Whenever a team member asks for an additional monitor or even just a larger monitor, be ready with your new favourite saying (you will be using this alot);

“sorry, there’s nothing in the budget for things like that”.

Larger monitors and especially dual (or triple) monitors often lead to increased productivity and worse, makes the developers job more enjoyable so you must be very vigilant in keeping them restricted to one monitor…preferably  a 14 inch number.

If anyone ever asks you:

“may I bring in my own monitor from home then?”

immediately ask them to pack their things and be on their way. This kind of ‘go the extra mile’ behaviour can be infectious and may allow a thread of work enjoyment to seep into the team which, naturally, is intolerable.

Strap a Giant Ship Anchor to Their Waist

Developers think they are special. They are not. As such they should have the same machines as everyone else in the company. If they say they need a more powerful machine, tell them if they were a half way decent developer they should be able to work with any old machine, even a 386 just like you used to do back in the day…

Ensure any servers you have are maxed to capacity, especially the database server, there are few enjoyments in life that beat watching a developer lose more hair because the database server has run out of disk space…again. Crying, “I have more disk space on my mobile phone than this stupid server…which century are we living in here!”, they will beg for a new machine or at the very least a bigger hard drive. Enjoy the show and once they’ve cleared some space and got things working again, copy a massive file onto the server and watch the spectacle again.

Oh yeah!

Oh and of course if they happen to have a build machine, make sure it is the slowest machine you can find. A slow build is a frustrating build and a frustrating build is easier to get rid of (you want to stop any continuous integration which may be going as this kind of setup takes away ALOT of developer pain).

The beautiful thing about this is you will be seen as a genius by upper management because of the vast amounts of $$$ you appear to be saving them! Secretly laugh at them behind their backs because the reality is very different, though they are saving money on better machines, developers are taking 2-3 times as long to complete their tasks…and developers are expensive…much much more expensive than ‘decent’ machines.

Start planning an amazing holiday, your bonus should be huge this year!

Divide and Conquer

If your team gets together on Monday mornings for a coffee and a chat about the week ahead, it may seem like a good time waster to you but don’t be deceived! Such meetings are great for morale and team building, making your team happier and therefore more productive.

They must be stopped at all costs.

Watch your bonus grow as you put a stop to these ‘meetings’, putting an extra twenty minutes of work back into each developers Monday. Senior management will be talking about your genius.

Bore Them to Tears

Documentation, Documentation, Documentation!

Reams of it!

Any new feature request demands at least a few pages to fully describe the change…and that is just to fix some spelling.

As for the developers. Insist on a tech spec for every piece of work. Then insist that spec must be approved by the team lead…before it goes to the architect for approval…which then must finally be approved by you. Make a point of rejecting at least half.

Ensure the documentation gets done in something like MS Word. The business (and senior management) will be happy with your choice and developers will grumble.

They do complain alot, developers.

They will grumble and tell you that a Wiki would be a better place to document things because it’s easier to search, keep updated, manage change history and ensure that the latest version is easily available to everyone. Indeed they are right but that would involve change and who wants change? Change means risk and you have a bonus you are working towards.

Drive Them Insane

Say things like, ‘ok, to improve productivity we are going to be doing daily SCRUMs’ (developers love SCRUM’s, well good ones do anyway).

But then in each meeting YOU do all the talking, dish out tasks, berate people for taking too long, tell them how poorly the team is perceived by the rest of the company then finish the meeting with a (contrasting) positive and resounding, “OK team, Let’s go GUYS”.

This is so completely not how SCRUM works. Your good developers will point this out…make sure you keep calling the meetings a SCRUM and they will slowly (but very surely) go insane. Eventually they won’t be able to stand it any more and will leave.

Tell senior management the deserters couldn’t handle the new tighter controls you have placed on the project and replace any good developer that leaves with one that is half the salary.

Get an extra bank account, one is not going to be big enough to fit your bonus!

Give Them Enough Rope

WARNING this is pure evil…so read very carefully.

Allow on the fly changes to production servers.

Grant full access to production databases, i.e. so developers can run any kind of script at any time.

Like a spider in a web, you just sit and wait…disaster will happen.

Throw Them to the Lions

If senior management approach you about problems they have been hearing about the system, always direct all blame to the best developer on your team (if he/she was so good the problem should have never arisen).

Deny all suggestions that your team has been doing many extra hours (with no overtime paid) to stay on top of things, suggest that even if that were true, once again, if they were half way decent developers extra hours would not be needed.

You are doing the best you can with the limited abilities which exist in your team.

If you start to feel uncomfortable with how you are treating your staff (what the!), just remember…your bonus.

The Perfect Team

Do all of these things and over time you will find that strangely not all of the developers leave! Some stay on enduring the pain, walking the tightrope over the raging river of suffering. No matter what you do they keep coming back for more and the great thing is this, they do not leave because they are rubbish, they have as much talent at software development as you do at managing projects, are entirely in it for the pay packet and are slowly but surely turning your codebase into a festering cesspool of ick.

So keep up all the good work you have been doing and your team will soon be full of these blundering fools and you will have complete success at total failure!

Authors Comment

I just wanted to be clear here, this is not a rant about a place I have worked and most certainly not about any individual manager. Just a bit of fun exaggerating some of the frustrations we have all experienced as developers.

you need to immediately put a stop to

ClickOnce Publish to Web with MSBuild


With ClickOnce you may publish to a web or file share location. This MSDN article tells you how to do it from Visual Studio, but doing it from VS is very limiting what you will end up wanting to do is publish using MsBuild from the command prompt.  This posting is not a comprehensive ‘how-to’ but has some useful tips, simple but painful lessons learnt through trial and error.

Project File Changes

Open up your Project.csproj in a text editor (I always use notepad++). Set these properties, add them if they are not there already….they should be near the top of the file and probably not together.



As far as I can tell this can either be Web or Unc


This one is really important, if you do not set this to true the publish will work fine but you will have problems installing. If you see an error that looks something like this

 Deployment url            : file:///C:/Documents%20and%20Settings/Administrator.HP275/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/QTJPP0ZG/MyApp.Shell.application

 Below is a summary of the errors, details of these errors are listed later in the log.
 * Activation of C:\Documents and Settings\Administrator.HP275\Local Settings\Temporary Internet Files\Content.IE5\QTJPP0ZG\MyApp.Shell.application resulted in exception. Following failure messages were detected:
 + Downloading file:///C:/Documents and Settings/Administrator.HP275/Local Settings/Temporary Internet Files/Content.IE5/QTJPP0ZG/MyApp.Shell.application did not succeed.

the likely cause of the problem is the IsWebBootstrapper value is false. Note that VS kindly changes this value for you sometimes…so be careful! The clue that this is the cause is of course the fact that the installer is trying to find the file from a local path.


This is still a unc path, preferably to the dir of the virtual directory in IIS. However if the machine you are publishing from does not have write access to that location on the network, you can publish to a local location then copy the files to the secure machine.

Batch File

I like to create a separate batch file for each environment that I need to publish to, e.g. QA, Training, Production etc.

The reason is, SOME of the MsBuild variables that need to be set must be passed in (as far as I can tell) from the command prompt to MsBuild.

So this is what my batch files look like (check out my posting on MsBuild and multiple environments for details on the extra properties).

msbuild /t:Publish /p:Configuration=Release /p:BuildEnvironment=QA /p:ApplicationVersion= /p:UpdateUrl=http://MachineNameOrIP/Release/QA/ /p:InstallUrl=http://MachineNameOrIP/Release/QA/

InstallUrl and UpdateUrl are both properties which apparently need to be passed in as parameters which is why I put them in the batch file.

The ApplicationVersion I still do manually because I haven’t tried setting up the automated solution yet.


To publish from a web address you will need to setup a virtual directory in IIS.

The main ‘Gotcha’ I encountered was setting the execute permissions to Scripts and executables. It must be Scripts only! This post help me figure out what the hell was going wrong when I had the wrong setting.

Final Note

If you are publish to the web then you most likely want/need a publish page, check out my other posting on creating the publish.html file as part of your build (this file gets created when you publish from VS but you stop getting it as soon as you publish directly from MsBuild)

Happy publishing 🙂