Can I please have some more detailed information on your system specifications.
You can go to http://www.cpuid.com/downloads/pc-wizard/2010.1.95-setu... and
download the program that shows up, Once installed save the system summary via
this floppy disk icon at the top left of the screen and then select a file name
for it, once done copy and paste the contents of the text file to this forum post,
unfortunatley this doesn't include power supply or case specifications so I will
need you to look inside the case for there serial/model numbers and manufacturers
The splinter cell double agent have pixel shader 3.0 and 3d analyzer can only be used for the games having pixel shader 2.0 so there is no way that any setting can help you in running this game.
I tried myself this game to run with 3d analyzer in the past.