Sigh....
To start off, move hijackthis to a new folder in C:\.
Only then, start hijackthis, select Scan Only, place checkmarks against all the entries listed below that still exist, and then press Fix Checked.
O4 - HKLM\..\Run: [outlook] C:\Program Files\outlook\outlook.exe /auto
O4 - HKLM\..\Run: [winlog] winlog.exe
O4 - HKLM\..\RunServices: [winlog] winlog.exe
O4 - HKCU\..\Run: [uruf] C:\PROGRA~1\COMMON~1\uruf\urufm.exe
Good. Now browse to and delete these files and the outlook and uruf folders:
C:\WINDOWS\system32\winlog.exe
C:\Program Files\outlook\outlook.exe
C:\Program Files\outlook
C:\PROGRA~1\COMMON~1\uruf\urufm.exe
C:\PROGRA~1\COMMON~1\uruf
If they prove difficult, try to delete them in safe mode: repeat the whole process there. Or just use this to delete the files after fixing the HT entries:
http://ccollomb.free.fr/unlocker/
Finally, get an antivirus.... the sigh was because you are just begging for this type of hit without it.
AVG FRE, Avast, Avira, AVG AS 7.5, Spywareblaster, ZoneAlarm Free, Kerio; there are others - I use AVG fre[7], AVG AS, Spywareblaster and Zonealarm.