VSS configuration external comparison tool beyond compare

Although visual sourcesafe 2005 comes with a comparison tool, it is not as professional as beyond compare 2. How can I configure the external comparison tool beyond compare 2 in vss2005?

Open visual sourcesafe 2005, tool --> Option --> Editor (tools ---> options ---> external programs ),
Select "file difference" in [operation"
Enter ". *" in the [file extension]
In the [command line], enter "{Specific path} \ beyond compare 2 \ bc2.exe % 1% 2". For command line parameters, refer to the prompt.

After that, beyond compare is much better!