WCF Step Into fails in Windows XP

Hi everyone

I have a .NET solution that works well with debugging and step into in Windows7. However, when run from a Windows XP environment, we have strange errors when stepping into the WCF service.

"The server did not provide a meaningful reply, this might be caused by a contract mismatch, a premature session shutdown or an internal server error".

If I check the event viewer, I have the following message:
The description ... cannot be found. The local computer may not have the necessary registry information...

Any idea why it runs well on Win7 but not Win XP? Both are 32bit OS.
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fxcoeConnect With a Mentor Author Commented:
actually found out that this was due to a 3rd party dll that was used by my team, that was  not included in the deployed asp.net website.

After installing the DLL to the GAC, we do not get the errors anymore
Do you have visual studio installed?
Did you check this post out? It may point you in the right direction: http://social.msdn.microsoft.com/Forums/en-US/vstswebtest/thread/8b45e925-5330-435a-b6de-53a5945ee704/
fxcoeAuthor Commented:
deployment missed some DLL. after correcting this mistake it works
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