CCleaner illegal operation - msvbmv60.dll

I've run CCleaner on XP no problem for months. Great prog!

Just reinstalled win98 on an old dell dimension xps d300. At first CCleaner wouldn't install . Downloaded visual basic files and it installed fine. It now completes an analysis and then crashes: "exception 10h in module msvbvm60.dll". Any suggestions? (incidentally I can't get firefox or thunderbird to install either - extraction happens, then it veryfies archives and simply quits. same download works fine in xp. related prob?)

Start, Run,

command.com /c deltree /y %temp%

Then try to run CCleaner again. Let me know how it goes.