I do follow GS51.PDF(Page76 to Page78). When I use SVCS Menu,I got the message as below: "C:\Program Files\Microsoft Visual Studio\VSS\win32\Ss.exe" History "TRAFFIC.C" -I- -YAdmin --- Error: can't execute '"C:\Program Files\Microsoft Visual Studio\VSS\win32\Ss.exe" History "TRAFFIC.C" -I- -YAdmin'