I have tried the script (/SILENT /LOADINF="winscp365.inf") and WinSCP was installed in C:\Prg\WinSCP3. With what version of WinSCP do you have the problem? Have you tried the latest one? How do you run the install program?
You may also try to enable logging (/LOG) and check the log file in case it shows something useful. _________________ Martin Prikryl