taskkill.exe + close a window

[Rosebud6]

Using WPI to install WinRAR. using the /s switch stops the prompts but the startmenu shortcut window pops open. Trying to figure out a way to prevent or stop it from opening. Any Ideas? Can Taskkill.exe close a window?

[Sonic]

You must use a reg key to indicate to windows this is not the first login ... but it's the night for me and I don't remember the key ... if I remember I will post here ... but you can search on the forum there is also the solution.

Goodbye.