Hi Tony,

From your description, After you installed VS 2005 on a Vista machine, you
can not open any files that should be associated with it, correct?

Does the problem occur right after you try using VS 2005 after installed it
or after using correctly for sometime? As for the files that can not open,
are they all the files (should be assocated with VS 2005) or one a small
set? Does solution and project files be opened correctly through double
click? When you view those files in file explorer, are the icons of those
files correctly displayed or whether the extensions of those files be
correctly set to Visual Studio?

For general troubleshooting, I also suggest you use filemon tool to monitor
on the machine to see whether any other problems occured under the veil.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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