What is the reason for an unhandled win32 exception in an installer program?

Question

I got the following message:

An unhandled win32 exception occurred in numpy-1.5.0-sse3.exe [3324].

The exception occurred in the Numpy installer for Python 2.7---I have the latter on the machine.

When I clicked "Yes" for using the selected debugger, I got the following message:

The Application Data folder for Visual Studio could not be created.

I don't have admin privileges.

Is this the reason for the exception, or is there some other reason?

Answer 1

This is not the reason for the exception. Instead, when you tried to debug the original problem, you encountered a problem with Visual Studio. The Visual Studio error is resolved in the following manner:

Check your registry under the following path:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

Under there should be an entry for AppData. The key value should be like so:

%USERPROFILE%\AppData\Roaming

If it isn't, change it to the above value and your program should now work.

As for the original error, we really don't have enough information to comment intelligently.