That MicrosoftAntispyware beta1 or whatever it is called is free and it an excellent program.
http://www.microsoft.com/
Tons of spyware remover programs. I like spy sweeper also but I am willing to bet you have some viruses thats this program will not get rid of. If they do get rid of them they virus will just install them back on your computer.
Download CWShredder, unzip it, start the program hit the fix button.
IN control Panel - add/ remove programs
uninstall:
SyncroAD
Web_Rebates
NavExcel
and whatever else you dont think should be there
Reboot
With all other windows closed have HijackThis del alot of items that do not belong. I will have to find a list if you are not familar with what to del.
After that reboot.
Make sure you can see all files. In Control Panel - Folder Options - View check ""Show all files and folders" and uncheck "hice protected operating system files"
Search for and delete these files:
msvxd.exe
msvxd16.dll
msvxd32.dll
Hell there are lots more but those are most common.
Delete these folders:
C:\program files\web_rebates
c:\program files\windows syncroad
c:\program files\navexcel search toolbar
Delete the content of these folders:
C:\document and settings\paul\local
Also Update your norton or whatever virus protection you use and run a full scan. I use norton and when its done it shut it all the way down and run AVG.