If you're still having trouble with viruses/spyware/adware , go to:
http://housecall.trendmicro.com/Do a full system scan.
This online virus scanning program will detect all known malware (at least what is knows to Trend Micro).
Requirements:
Hardware:
133MHz Intel™ Pentium™ processor or equivalent
64MB of RAM
At least 30MB of available disk space
Operating System:
Microsoft Windows 98SE/NT4.0,SP6a/2000,SP2/XP,SP1/2003 and Windows MCE 2005
Linux Distributions that supports libc6
Solaris 2.6 and above
Software:
Microsoft Internet Explorer (IE) 6.0 or later
Mozilla Firefox 1.0.5, 1.0.6, 1.0.7, 1.5
Mozilla 1.7.12
Display: Monitor that supports 800 x 600 resolution at 256 colors or higher
This does work for 98SE, so I THINK it will work for Millenium Edition.