>>File.Copy uses the api CopyFile http://msdn.microsoft.com/en-us/library/windows/desktop/aa363851(v=vs.85).aspx
>>
>>Looks like a permission issue
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>I do not think so. The file copy starts but this is fired as an error in the middle of the copy:
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>"The process cannot access the file 'MyFile' because it is being used by another process."
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>So, this is why I am wondering how another action can get a hold of a file while it is being created.
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>It looks like the other action starts to copy the file while the copy is in progress thus interfering with the initial copy.
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>Is that possible?

how about a backup process?