Does anyone know of any Stealthing Programs?

I was wondering if anyone knew of any programs out there that allow you to "stealth" other programs, making them invisible in the taskbar and/or the processes tab under the task manager.
I have a keylogger which when running allows you to make it invisible until you hit a certain pre-set key combination and I have a couple other programs which I would also like the hide. So if anyone has ever heard of something like this, any info would be greatly appreciated.
Thanks

If it's a command line program (i'm not sure if it'll work with non-command line), I found a little utility called RunHide worked well. I used it for the Seti@home CL client alot, just to hide it.

I have it hosted here:
http://physics.bgsu.edu/~nwalt/seti/runhide.exe

I believe there is a program called HideIt... Whatever its name is it is mentioned in the F@H FAQ's.

Sweet. I've been wanting a program like this.

also, if you are willing to learn some programming, you can incorperate "hiding" pretty easily in win32.