Well, what is Msdia80.dll, and can I delete it?

What I did was found microsoft shared folder on my main drive(SSD), and copied this dll there, even though there was already an msdia90.dll in the proper folder. I then proceeded to delete it off my secondary storage drive. Was this safe?

I'd probably ask the application developer.
Description of the security update for Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package: July 28, 2009
For general windows issues you can ask over here.
http://answers.microsoft.com/en-us/windows
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows]
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

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