Windows2000 / XP / 2003 system remote terminal service is a very powerful service, but also became a resident who *** channel host, *** who could use some means to get the administrator account and password and * ** hosts. Below, we look at how to modify the default port to prevent ******.
As we all know, remote terminal services based on port 3389. *** are generally scans the host open port, once found to open the 3389 port, the next step will be ***, so we only need to modify the default port service you can avoid the eyes and ears of those who most *** .
Step: Open the "Start → Run", type "regedit", open the registry into the following path: [HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlSet / Control / TerminalServer /
Wds / rdpwd / Tds / tcp], see PortNamber the decimal value of the selected double click to open it -> Numerical data:? Default value is 3389, modified to a desired port can, for example, 9090.
Then open [HKEY_LOCAL_MACHINE /
SYSTEM / CurrentContro1Set / Control / TenninalServer / WinStations / RDP / Tcp], PortNumber value (default is 3389) modified to port 9090.
After setting modification, in order to take effect should restart the server Note: Before restarting the server, be sure to determine the system firewall port 9090 has been put into it, so as not to open the firewall system. Reboot the server. Not the remote server. When restart after remote login using port 9090 on it. 
But for a remote desktop application for this complex operation it is born, or do not recommend the use of Microsoft's own Remote Tools, you can use third-party tools to be operated remotely, is now more popular third-party tools are remote, teamviewer, sunflower and IIS7 remote batch, each tool has its own characteristics, if you are a local tyrant, it suggested tv, if it is recommended sunflower end mobile PC, or a remote server to use bulk quantities IIS7 remote desktop management tools.