What IPC$ share?
What is it exist for in windows?

I know just that it is some unwanted shares in windows.
If thay exist so how can I use them? What is IPC$ good for?

I traid to mount but that share was empty and I was able to execute just shell commands in that folder where IPC$ was mounted to.

==My OS==
Local=linux mandriva 10.1
Remote=windows XP pro