This is getting worse ... Ad-Aware is the boy for the job, but ...
... you want to check Safe Boot
and select Minimal (Alternate Shell)
This will start you in Safe Mode with Command Prompt where you can do:
cd \program files\lavasoft\ad-aware se personal
(or use wildcards like \program files\lavasoft\ad*)
Then type ad-aware to launch the application. You can do similar things with spybotsd and antivir antivirus
(type avcenter.exe) which is simple enough to run in Safe Mode with Command Prompt.
That said, while you should be able to get rid of spyware quake/falcon/whatever, until you find the root cause (downloader trojan), it and other things may keep coming back. In my case, I had missed part of a Zlob trojan variant. I had taken the PC home and went to bring it back last night and as soon as the kid launched his messenger/messenger plus crap, Antivir started to detect parts of Zlob again. It was a merry chase finding the hidden process.
P.S. You can launch c:\windows\pchealth\helpctr\binaries\msconfigedit boot.ini/safeboot:minimal<alternate shell> from the boot command line. (it's not in your path) from Safe Mode Command Prompt to uncheck the setting to boot normally, or you go to the root of C and type and remove