Vista - Can't load assembly

Hi all,

I am developing a web app in VS2008 which uses a third party software. I installed the software and updated their dlls (hotfixes) but when I try to debug in VS, I get a "The located assembly's manifest definition does not match the assembly reference" error.

The dlls are missing from the GAC (C:\Windows\Assembly)
I've tried dragging and dropping, access denied
I've tried using the gacutil.exe in the VS2008 command prompt (after selecting 'run as administrator'), and it says 'assembley successfully added to the cache', but I still get the same error in VS when I try to debug and the dlls are still missing from the GAC.

Any ideas?

This might get you off in the right direction....it's necessarily an answer, here you go:
The located assembly's manifest definition does not match the assembly reference. - MSDN Forums

When I logged into my computer yesterday, my GAC had updated itself with old versions off the dlls.
I added the updated dlls with the gacutil and then I had 2 versions of the dlls and my project could only see the old ones.
So, then I removed all of the dlls (using the gacutil again) and re-added the updated ones.
That finally solved that problem!

Marry, thanks for your suggestion. I appreciate the response.

does any 1 knw any master password for a administarion account?
or hw 2log on to one useing any other methods?