WCF with 3.5 and 4.0 together

Posted by Pharabus on Stack Overflow See other posts from Stack Overflow or by Pharabus
Published on 2010-04-20T13:25:37Z Indexed on 2010/04/20 22:53 UTC
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Filed under:

wcf

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.net-3.5

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.net-4.0

Has anyone managed to run wcf successfully in 2.0 integrated mode on IIS7 when .net 4 has been installed?

I found that installing .net 4 removed the 2.0 handlers for svc and replaced them with .net 4 versions (this led to a 404.17 error in my v3.5 site), I managed to get my 3.5 site working again by running ServiceModelReg.exe /i from the v3.0 folder (Windows Commuication Foundation) but that removed the 4.0 mappings so they seem to be mutually exclusive?

any advise on how to run a 4.0 and 3.5 WCF site on the same IIS7 server?

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