PC running slower, apps in task manager

please help me. my pc is running slower than usual and i've scanned it but found no threats, not even with rootkit scanners. however, i see apps in task manager that i've never seen before.

 

is my pc infected or am i just imagining things? coz when i look through my logs my pc looks clean...

 

[edit: Changed subject for clarity.]

Message Edited by shannons on 10-05-2009 08:58 AM