<blush>Looks like a bugette crept into the installer for our December release that stops the file conversion tools we provided from working.</blush>
 
To work around this, you need to edit the corresponding .exe.config file for the tool that you want to use.
 
For instance, if you want to convert an ims file to a dmd file then you need to edit ImsToDmd.exe.config which you can find at <VSInstallDir>\Common7\IDE\.
The original file looks like this:
 
<configuration>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<probing privatePath="DSLTools;PrimaryInteropAssemblies" />
</assemblyBinding>
</runtime>
</configuration>
 
It should be amended to look like this (modification in bold)
 
<configuration>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<probing privatePath="DSLTools;PrimaryInteropAssemblies;PrivateAssemblies" />
</assemblyBinding>
</runtime>
</configuration>
 
Hope this unblocks anyone who was stuck.