Hi everybody I have a problem in installing MSP 3.3.1 on to a Windows Server 2008 R2 SP1 machine. Does anyone have solution to solve the problem ? I have an Windows Server 2008 R2 SP1 (x64) running under ESXi 4.1. SQL Server 2008 R2 (x64) was installed on the machine. When I install the MSP 3.3.1, the installation program showed the following error: Error 1720. There is a problem with this Windows Installer package. A script required for this install to comlete cound not be run. Contact your support personnel or package vendor. Custom action CA_AddMspUserToIIS_WPG script error -2146827864. Microsoft VBScript runtime error: Object required 'objUser' Line 551, Column 5. Regards Antony