You may want to download LSPFix beforehand, but...
Boot into Safe Mode, disable system restore.
download and run LSPFix from http://cexx.org/lspfix.htm
1. Run LSPFix.
2. Check 'I know what I'm doing'.
3. Select 'mdnsnsp.dll'
4. Click the right-pointing arrow (moves it to the "remove" page).
5. Click 'Finished'.
Go to start -> run and type the following lines then hit enter one at a time...
regsvr32 /u c:\program files\bonjour\mdnsnsp.dll
regsvr32 /u C:\WINDOWS\system32\ssqrr.dll
Open task manager and end the following processes if present...
mDNSResponder.exe
ps2.exe
run HJT again and let it fix any of the following should they exist...
C:\Program Files\Bonjour\mDNSResponder.exe
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = local.,
O2 - BHO: MSEvents Object - {6DD0BC06-4719-4BA3-BEBC-FBAE6A448152} - C:\WINDOWS\system32\ssqrr.dll
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O10 - Unknown file in Winsock LSP: c:\program files\bonjour\mdnsnsp.dll
O20 - Winlogon Notify: ssqrr - C:\WINDOWS\system32\ssqrr.dll
O23 - Service: Bonjour Service - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
delete the following files and directories and remove them from the recycle bin...
c:\program files
\bonjour\mdnsnsp.dll - remove directory in bold
C:\WINDOWS\system32\
ssqrr.dll
C:\Program Files
\Bonjour\mDNSResponder.exe - remove directory in bold
C:\WINDOWS\system32\
ps2.exe
turn system restore back on and reboot. run HJT again and post a new log so we can see if it's got it all.