Most likely it has been deleted as it was a temp file.
Open HijackThis and click on 'Do a System Scan Only'. Check the following entries
(If they still exist, make sure you do not miss any)
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R3 - URLSearchHook: (no name) - <default> - (no file)
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - (no file)
O3 - Toolbar: (no name) - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - (no file)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O9 - Extra button: (no name) - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - (no file)
O15 - Trusted Zone: *.moove.com
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://download.games.yahoo.com/game...ploader_v6.cab
O23 - Service: MySQL41 - Unknown owner - C:\Program.exe (file missing)
Please remember to close all other windows, including browsers then click Fix checked.
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Delete this folder in blue
C:\Documents and Settings\All Users\Application Data\SecTaskMan
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Open HijackThis and click on 'Do a System Scan and save a Logfile'. Save the log file and post it here.
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Log Required
Hijackthis Log
An update on how your system is running.