Winscp (3.4.2) won't run in scripting mode

I am not able to run winscp from command line in scripting mode. If I run the following command in command prompt:
winscp3.exe <params>

No matter what params i specify, it always open up the GUI. Does winscp version 3.4.2 not support scripting mode?

Note: the latest version (4.2.9) does work properly.

Using WinSCP 3.4.2 on Windows 2008 server.

Didn't realize I was posting the question as Guest. I originated this question.

Scripting was introduced only in version 3.7.