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Editorial Team
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Asked: 2026-06-14T23:04:51+00:00

I have a VS2010 TFS Build server configured with a build definition set for

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I have a VS2010 TFS Build server configured with a build definition set for continuous configuration.

For my BizTalk 2010 solution I have 200+ tests. These tests all run ok on my dev box but on the build server, for the tests dealing with flat-files, I get the error “Unable to find Microsoft.BizTalk.Tom.resources”. My guess is that this is a resource file contained within the assembly Microsoft.BizTalk.TOM.dll Although I’ve used reflector and can’t see the resources.

It turns out Microsoft.BizTalk.TOM.dll is a .Net 2 dll that is installed with BizTalk into the following folder:

C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PublicAssemblies

I’ve checked the build server and confirmed that this assembly is present, in the above folder.

I have tried the following, based on 3 different blog postings around the same issue:

  1. Included a reference to dll and set copylocal to true
  2. Added the assembly to the .Net 2 GAC
  3. Added the assembly to the “Additional files to deploy” list from the Test Settings dialog / Deployment tab
  4. Added the assembly to the “Folders to use when tests are run” list from the Test Settings dialog / Unit Test tab

After the tests fail I check the \TestResults\Out folder. I can see that the Microsoft.BizTalk.TOM.dll has been copied here.

When I check the equivalent folder on the dev server I don’t see any files that aren’t present on the build server.

Any ideas what I can try next please?

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1 Answer

  1. Editorial Team

    I found a copy of the Microsoft.BizTalk.Tom.dll in the folder: C:\Users\tfs_service\AppData\Local\assembly\dl3\randomname\

    After researching, it turns out this is where “Shadow Copies”of assemblies are stored: what is cache AppData\Local\assembly\dl3?

    I would like it know why shadow copies are being made and how I can prevent it, I guess in my case the app domain is MsTest?

    I deleted the shadow copies and uninstalled from the GAC, so that I was left with copies in only the following folders:

    • C:\Program Files (x86)\Microsoft Visual Studio
      10.0\Common7\IDE\PublicAssemblies
    • C:\Program Files (x86)\Common Files\Microsoft BizTalk

    After deleting the shadow copies and and restarting the server, the tests now run successfully.

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