Is there any way that windows 7 connect to open wireless networks automatically like windows XP?

To just any open network automatically - no. To a preferred network yes.MCSE, MCSA, MCDST [If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]

Is there any way that windows 7 connect to open wireless networks automatically like windows XP? Yes, in an existing wireless network profile check the appropriate checkbox in the wireless network propertie. To get to the wireless network properties open the Network and Sharing Center and click on Manage wireless networks on the left then right click on the network and select Properties.http://cid-25ab668da65c8fbe.skydrive.live.com/self.aspx/Windows%20images/Autoconnect.pngWhen connecting to a new wireless network the option to auto connect should be given to you to accept or not.http://cid-25ab668da65c8fbe.skydrive.live.com/self.aspx/Windows%20images/AutoconnectNew.pngSee the little video for an illustration of this.http://windows.microsoft.com/en-us/windows7/View-and-connect-to-available-wireless-networks MS-MVP Windows Desktop Experience, "When all else fails, read the instructions"

i want to connect to non profiled open wireless networks automatially like win XP. every body knows how to connect to profiled wireless networks automatically.

As Cdobbs said, Windows 7 can only access the profiled Wireless network. Regarding the non profiled Wireless network, I'm afraid that it cannot be accessed automatically.Thanks,Novak