Re recent query about'what is rnaapp'
go to http://search.support.microsoft.com/kb/c.asp
(suggest bookmark this), Knowledge Base Search,enter
1)select product, say Windows 98.
2) Dot Keyword Search
3)type in rnaapp
Click Go
This will give 15 links involving problems with rnaapp.
Use same web page for M/S articles
1) leave as opened
2)Dot Specific Article number
3)Type in Q plus article number ie Q238165 for Defrag error 00205
Regards Frank
Click Go for link