It is confusing. p7zip is the name of the app. It is a command line program. However, don't ask why, the name of the command is 7za.

I wrote a program, also a command line program, that makes use of p7zip. It is called 7Squeeze. I may write a GUI for it in the future. In fact, I have a GUI for it in Windows. I just have to find the time to do one (a better one) for Maemo (and Linux in general).

Any way, you can read about the command line version here:

http://temporaryland.wordpress.com/2...een-published/

The program consists of two parts that you can gethere:

http://sites.google.com/site/rmcorrespond/7sqz

http://sites.google.com/site/rmcorrespond/7usqz

The Windows version is here:

http://sites.google.com/site/rmcorre..._1_0b1_exe.zip

It is UGLY, but it works: