Vista/Outlook 2007 - cannot replace Addin DLL

[Slava Barouline]

Hi

I am experiencing a strange problem with Outlook Add-in on WindowsVista

Before Vista to update my add-in I could replace Add-in DLL file with a
newer version

Now I cannot do it
Something doesn't allow me, OS says "file is in use" though Outlook is
closed

What could be wrong?

I find that whole process of deployment on Vista + Outlook 2007 is very
painful
We worked out the procedure, but it's awkward (turn off UAC, change
permissions etc)

Does anybody know where I can read about Add-in deployment for Windows Vista
+ Outlook 2007?

Thanks
Slava