A lot of people find that they cannot use WarpIn anymore, or that a WPI archive that was perfectly working, suddenly stops working.
The most common solution to these problems is to look for duplicate copies of Warpin DLLs on your libpath. Most of the time removing a DLL that was left on disk from an old WarpIn installation solves the problem.
A good and quick way of looking for duplicate DLLs on your libpath is using the "which" utility that you can find here.
