DOTNET 4.0 with TestStand 2010

      If you are using Teststand 2010 with DOTNET 4.0 you will get an error as Teststand 2010 was build with DOTNET 2.0. The work around for this is to create a file called SeqEdit.exe.config. In this file add the following:

 <?xml version="1.0"?>
<configuration>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
</assemblyBinding>
</runtime>
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0" />
</startup>
</configuration>

   Adding supportedRuntime = v4.0 will set Teststand to use the DOTNET 4.0 runtime engine. Then all you need to do is save this file in the Teststand directory. <Teststand>\Bin. In my case it was C:\Program Files (x86)\National Instruments\TestStand 2010 SP1\Bin. Once it is in this location restart Teststand and you should now be able to use DOTNET 4.0 libraries.  Typically in my case I use CSharp DLL's to do the main part of my code and Teststand is just the sequencer.