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C:\WINDOWS\System32\winter.exe
F2 - REG:system.ini: Shell=Explorer.exe C:\WINDOWS\System32\proper.exe
O2 - BHO: (no name) - {D27987B8-7244-4DE0-AE10-39B826B492F1} - C:\WINDOWS\System32\bronto.dll
O3 - Toolbar: The jokwmp - {1C56ED66-9488-4D8F-B028-8BBABABB8361} - C:\WINDOWS\jokwmp.dll
O4 - HKCU\..\Run: [Undefined] C:\WINDOWS\System32\winter.exe
O4 - Startup: infos.exe
O4 - Global Startup: autos.exe
O21 - SSODL: sapnet - {3FD62490-3CB8-4249-BF08-1294551BF999} - C:\WINDOWS\sapnet.dll
O21 - SSODL: rmvgor - {29B00B54-C39F-4E44-A63E-C3F24B0CE6D3} - C:\WINDOWS\rmvgor.dll
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You are well infected with a number of trojans as you see from the list above. Removal of the SMITFRAUD class can be effected by refeence to this site: http://www.bleepingcomputer.com/forums/topic17258.html
The others can be removed via tortuous processes that can be found in the foru in posts talked through by Crunchie.
If you can get your data off to DVD or USB drive, I promise you that wiping your disk and reinstalling everything is the shortest route to recovery. Otherwise you'll spend days on this.