Changing default "temp directory" in XP ??

[jakesnake]

got as problem

i have downloaded a DVDR onto my "F" drive

but when i extract it, it seems that it loads itself into a temp directory
eg) C:\Documents and Settings\irc\Local Settings\Temp\Rar$DR01.687

i have 7.6GB on C:\ available before i start the extract

the DVDR is 4.3GB

ive tried setting TMP and TEMP to F: (COMMAND: SET TEMP=F: AND SET TMP=F
alo setting the "HOMEDRIVE" to F: (COMMAND: SET HOMEDRIVE=F

but it still expects to extract to C: first !!!



all i need is to extract from F: to F: using F: as a temp directory


thx in advance

jake