Boot into safe mode. See how HERE.
http://www.bleepingcomputer.com/forums/tutorial61.html
Turn off system restore.(XP/ME only) See how HERE.
http://www.bleepingcomputer.com/forums/tutorial56.html
In Windows Explorer, turn on "Show all files and folders, including hidden and system". See how HERE.
http://www.bleepingcomputer.com/forums/tutorial62.html
Run HJT with no other programmes open. Have HJT fix the following, by placing a tick in the little box next to(if there).
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = prosearching.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = prosearching.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchURL = prosearching.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = prosearching.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = prosearching.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = prosearching.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchURL = prosearching.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = prosearching.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = prosearching.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = prosearching.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page_bak = prosearching.com
O2 - BHO: (no name) - {FDD3B846-8D59-4ffb-8758-209B6AD74ACC} - (no file)
O4 - HKLM\..\Run: [TgAddServer] "C:\@Home\tioga\bin\tgfix" /fds "http://www/download/tioga"
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll (file missing)
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll (file missing)
O9 - Extra button: @Home - {92E71752-3340-4D08-AC68-A93FCAEC29B8} -
http://home.excite.ca (file missing) (HKCU)
Fix all 016-DPF entries.
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: winzwr32 - winzwr32.dll (file missing)
Click on the fix checked button.
Close HJT.
Reboot into normal mode and turn system restore back on.
Post a fresh HJT log.
Regards Howard
Edit: I suggest you copy and paste this post into a .txt document. That way you can have it open in safe mode while you are fixing the entries I advised.