Hi Scan,
See whether it isn't a bridge problem (bridgedll.exe) on your machine,delete all instances of bridge.dll
Use regedit to premanently remove the row "rundl32.exe "C:\WINNT\system32\bridge.dll,Load" from the registry
folder "HKLM\Software\Microsoft\Windows\CurrentVersion\Run"
Delete bridge.dll from C:\winnt\system32\folder
So rundll32.exe can be fine, but the association in the registry can be malicious. Do you understand?
polonus