Could not load assembly “Microsoft.BizTalk.Interop.SSOClient, Ver=” after BTS2013 upgrade

After successfully upgrading an existing BTS2010 and SSO installation to BTS2013 we found a custom pipeline component failing with the following error in the event log after some initial testing.


After reviewing the component source code, a reference to the Microsoft.BizTalk.Interop.SSOClient v5.0.1.0 assembly was found. Instead of recompiling the the solution using VS2012 and having to redeploying,  I decided to redirect the assembly version in the BizTalk config files BTSNTSvc.exe.config and BTSNTSvc64.exe.config.

Below is the assembly binding information that was placed between the existing <runtime> tags.

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1" appliesTo="v4.0.30319">
<assemblyIdentity name="Microsoft.BizTalk.Interop.SSOClient"
culture="neutral" />
<bindingRedirect oldVersion=""
See this link for more information on redirecting assembly versions.



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One Response to Could not load assembly “Microsoft.BizTalk.Interop.SSOClient, Ver=” after BTS2013 upgrade

  1. Pingback: Getting the SSO Application Configuration MMC to work with BizTalk 2013 | Adventures inside the Message Box

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