Thanks Viv,

I can't connect to the machine at the moment to verify the version, but we did a .NET framework update on the machine prior to this as we were getting a prompt about the .net version being incorrect. The version targeted on my development machine is .NET Framework 4 Client Profile. FWIW, a very similar program runs successfully on it. I'll try to connect to them later to investigate further, but I've worked around the problem by copying their data to my work machine, running the program here and then copying the data back to theirs.

>Sounds like that particular machine may have the wrong version of Sysem.EnterpriseServices.Wrapper.dll. Are you distributing it or relying on it being present in the GAC?
>
>IAC check whether the machine has the same .NET framework version installed as that being targeted by the project....
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>
>>Hi,
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>>I have the following code compiled into en executable and running successfully at multiple sites. At one site in particular the exe just crashes without any error displaying, just a notice from Windows that the exe has crashed. The Event Log shows this:
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>>Faulting application ProvisionClient.exe, version 1.0.0.0, time stamp 0x53408368, faulting module System.EnterpriseServices.Wrapper.dll, version 4.0.30319.18408, time stamp 0x5231093c, exception code 0xc0000005, fault offset 0x00015d65, process id 0x%9, application start time 0x%10.
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