folder share issue

I'm having a lil problem on my network, i'm running vista x86 and when i share a folder, appear on the network, but when you try to acces it says dont have permition to acces the folder, ask the administrator of the machine bla bla bla Acces bloqued.
This is not like xp? with simple right click > share and ppl can browse your machine?
thx

Hello,
Please go to Control Panel -> Network and Internet -> Network File and Printer Sharing and tell us what those settings are set to.
- JB