Windows Vista shared folder

Vista users encountered file and print sharing problems, mostly from firewalls, shared folders, security and sharing permissions, shared root directory and can not find shared resources, I translate here Can enhance your understanding of Vista sharing. Using a third-party firewall Windows Vista includes a built-in firewall: Windows Firewall. Windows Firewall automatically allows inbound communication when network discovery or file printer sharing is turned on. Of course, many users use other firewall products, such as Windows Live OneCare or PC-cillin, which by default will block inbound request network lookups and file printer sharing communications. If you use these non-Windows Firewall firewall products, Windows Vista will display the closed items in the Share and Discovery section in the Network and Sharing Center window. If so, you must adjust the firewall settings to allow network discovery and file printer sharing communication. In order for a computer running Windows Vista to find the current computer, you must allow the following inbound TCP and UDP traffic: UDP 3702/TCP 5357/TCP 5358 In order for the computer running Windows XP to find the current computer, and to run Windows XP and Windows Vista For file print sharing, you must allow the following inbound traffic: UDP 137/UDP 138/TCP 139/TCP 445 In order for the network device to find the current computer, you must allow the following inbound traffic: UDP 1900/TCP 2869 Unable to successfully access Windows Vista shared folder When you access a shared folder on a Windows Vista computer on a Windows XP version of Windows, or a non-Windows operating system, or a network device, if you cannot pass the verification, then the settings for NTLM2 may exist. Problem, NTLM2 is an authentication protocol for file and printer sharing links. Windows Vista uses NTLM2 by default. To solve this problem, you can try the following: 1> Allow NTLM2 on a computer or device that Windows Vista computers try to link to. For Windows XP versions prior to Windows, please refer to How to Allow NTLM2 to Verify http://support.microsoft.com/kb/239869. For non-Windows operating systems, refer to the documentation on how to enable NTLM2 authentication in the corresponding operating system. The web teaching network reminds everyone that for network devices, please log in to the corresponding website for relevant information, or download the firmware update to support NTLM2. This is the solution recommended by Microsoft. 2> If you are unable to change the parameters of a non-Windows operating system, or if your network device does not support NTLM2, then you can change the following key value to 1 in Windows Vista: HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Control\\Lsa\\LMCompatibilityLevel Microsoft does not Recommend this method