There is a problem with IIS and the Win32 modules. You will always get get that error regardless of what is wrong (thats because the error is in the error reporting code, go figure). Many times you need to set the script to run as system in IIS, even if you have given the IUSR_MachineName user the appropriate rights. Some times you need to run the script as system, and then have the script login as a regular user that has the correct permisions. Make sure you give full pathnames to everything. You also want to check for any mis-spellings.