SSP only works for administrators(TS008)
SSP only runs when the user is logged in as an administrator.
Windows security restrictions are preventing non-administrators from accessing certain files and or registry settings that are necessary for SSP to run. While the setup program for SSP 5.5 and later attempts to make all of the necessary security changes, the process is not always successful. Early versions of SSP did not make the necessary security changes.
Read: Running SSP in a Non-Administrator User Account