I’m uninstalling what I think are unneeded programs and I’ve run into a few that I am unsure are safe to get rid off , please advise. Thank you in advance.

Programs:
Nvidia PhysX
Open AL
PC probe II
Speech redist
Systems requirements Lab
vivca tool bar
Futuremark Measurement Services client
Futurement systems info.
I don’t have a PhysX card, also no clue if any games I play can use Open AL (Gears 1,Battlefield 2, Call of Duty 4, Crysis and Far Cry 1).

Futuremark came with the PC (Velocity Micro) and I can’t find it anywhere, gotta find it to use it or may as well loose it, right.

System specs:
Vista Home Premium 32-bit/ MX2-W black VM classic alum. case/500 watt VM Power Technology mod: EP-400XP-1/ASUS M2A-VM AMD 690G PCI-E AM2 DDR2/AMD 64 X2 6000+ 3.0GHz/Arctic Cooling Freezer 64 PRO Heatsink/2 X2gig Corsair XMS2 DDR2-800 the BIOS recognizes 4095, where can I get a true reading of utilized RAM/EVGA 8800GT Superclocked edition 512MB/X-FI Xtreme Gamer/Hitachi 500GB 7200rpm 16MB cache SATA 300 w/NCQ/20x Lite On DVD+/-RW Dual Layer Burner.

Doing my first backup and the less to backup the better.

Thank you for any and all responses.
Punabutta8251, Mahalo