Alright I found this free Virus Detection / Removal software from McAfee that runs on Windows 98. It only finds specific virus so its not a total package but it may have some use.

http://vil.nai.com/vil/stinger

What I like is it is a single .exe so it runs without installation and can run from a usb thumb drive.

My question is... are any of the 1,370 threats it detects and heals actually a threat for Windows 9x systems?

http://vil.nai.com/vil/stinger

Stinger is a stand-alone utility used to detect and remove specific viruses. It is not a substitute for full anti-virus protection, but rather a tool to assist administrators and users when dealing with an infected system. Stinger utilizes next generation scan engine technology, including process scanning, digitally signed DAT files, and scan performance optimizations.

Threats it detects

http://vil.nai.com/vil/Stinger_10_0_1_624_Threats_List.pdf

Alright, I tested it on Windows 98 and Win98 SE and it runs, but I still don't know if the malware and viruses it detects actually effect Windows 98. Does anyone know?

Here is the list of items it detects.

http://vil.nai.com/vil/Stinger_10_0_1_624_Threats_List.pdf

And is anyone willing to test it on Win95 and WinMe