I have 2 laptops one running XP and another Windows 7. Both have WiFi-card installed. I want to be able to share files between these 2 machines and then in next step also be able to share internet connection.

I have heard that Connectify on Windows 7 is a very handy and easy tool to set up a hotspot and other machines even XP,Vista can connect to this host hotspot and share files and internet connection.

I am able to search for the network (set on host) on my client machine. But how to share files? I don't see any such menu or anything.

Also after I have installed connectify on Windows 7, I am not able to connect to internet using data card. It throws error that "Error 31:A A device attached to the system is not functioning".

And on client machine, if I connect to data card, as well as connect to wireless network setup by host machine, I no longer am able to access internet, even though the data card is connected. The browser throws error:

Please help.

Any other utility similar to connectify etc?