Hehe, thanks guys for explaining, did not expect this much of replys. I'm a beginer so I experiment things.. Maybe I get lucky and invent some hack that all of you think its imposible
PC is smart, it can be programed for many things, I know now that its imposible to do what I wanted but I think this should be possible, printers, mouses and other slave devices have slave usb receiver/transmiter, PC has a master usb receiver/transmiter I get it now. Master has to be connected with Slave in order to work.
For this purpose is best to use LAN if you want to trasfer files, just to let know if someone reads this post in future.
I have connected 2 computers over normal LAN cable, everything detected automaticly (as both computers was allready registred to same workgroup in windows) and just went to my network places, and took all the files I've needed from one computer to another.
So best PC-PC connection for me is direct cable LAN