Let hijackthis fix the following:
O1 - Hosts: 216.177.73.139 auto.search.msn.com
O1 - Hosts: 216.177.73.139 search.netscape.com
O1 - Hosts: 216.177.73.139 ieautosearch
O2 - BHO: (no name) - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Program Files\NewDotNet\newdotnet5_20.dll
O2 - BHO: Natural Language Navigation - {60E78CAC-E9A7-4302-B9EE-8582EDE22FBF} - C:\WINDOWS2\System\BHO001.DLL
O4 - HKLM..\Run: [New.net Startup] rundll32 C:\PROGRA~1\NEWDOT~1\NEWDOT~2.DLL,NewDotNetStartup
O4 - HKLM..\Run: [mmtask] c:\Program Files\MusicMatch\MusicMatch Jukebox\mmtask.exe
O4 - HKLM..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
O4 - HKLM..\Run: [QuickTime Task] “C:\Program Files\QuickTime\qttask.exe” -atboottime
O4 - HKLM..\Run: [UpdReg] C:\WINDOWS2\Updreg.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} (Creative Software AutoUpdate) - http://us.creative.com/support/downloads/su/ocx/12119/CTSUEng.cab
O16 - DPF: {12F7F128-B36C-4843-8AA4-A5F71A969331} (Launcher Control) - https://horizons.istaria.com/controls/launcher.ocx
O16 - DPF: {9A19966F-AE0E-4699-8CCE-9B6F5F1C352C} (NPKXSite Control) - http://update.inca.feelamint.com/keycrypt/joyimpact/npkxsite.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://us.creative.com/support/downloads/su/ocx/12119/CTPID.cab

About the mssnuu.com . Please search for that filename in the Registry and send the file to virus@asw.cz and /or test that file here: http://www.kaspersky.com/remoteviruschk.html