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[E2013][TA] Exchange 2013 SP1 transport agent "type not found" issue RRS feed

  • General discussion

  • Our transport agents fail to install or run with "type not found" errors under Exchange 2013 Service Pack 1.

    The agents in question reference the Exchange 2007 public assemblies (version 8.0) to achieve Exchange version-neutrality. This has worked fine since Exchange 2007 and was enabled by an assembly redirection policy that Microsoft shipped with Exchange. This policy mapped 8.0 assemblies to the most recent version.

    While investigating this issue, we have found Exchange 2013 SP1 still has such policy in place, but the policy is not a valid XML file. According to the the Assembly Binding Log Viewer (fuslogvw.exe), this causes the redirection policy to be ignored. Once we remove the offending comment line (new to SP1), the redirection policy seem to get applied and the transport agents install just fine.

    If we are missing something and this is not a bug, what is the recommended practice now to build transport agents that are not specifically linked against a given Exchange release?

    Thursday, February 27, 2014 11:41 AM

All replies

  • Thank you for sharing the detail.

    Cheers,

    Gulab Prasad

    Technology Consultant

    Blog: http://www.exchangeranger.com    Twitter:   LinkedIn:
       Check out CodeTwo’s tools for Exchange admins

    Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

    Thursday, February 27, 2014 1:40 PM
  • In case anyone's interested, Microsoft is investigating this issue: http://blogs.technet.com/b/exchange/archive/2014/02/25/exchange-server-2013-service-pack-1-available.aspx#411035

    Monday, March 3, 2014 12:55 PM
  • Thanks for the update Peter.

    Cheers,

    Gulab Prasad

    Technology Consultant

    Blog: http://www.exchangeranger.com    Twitter:   LinkedIn:
       Check out CodeTwo’s tools for Exchange admins

    Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

    Monday, March 3, 2014 1:10 PM
  • Just raised a case with Microsoft to confirm when a fix will be available for this issue.
    Tuesday, March 4, 2014 2:42 PM
  • Thanks, Jamie. Please let us know if you have any updates.
    Tuesday, March 4, 2014 6:29 PM
  • FYI, the issue has been confirmed, a KB article and a fix is now available at http://support.microsoft.com/kb/2938053.

    Wednesday, March 5, 2014 6:19 AM