Actually, what you should do is this:
Navigate to C:\documents and settings\dave\local settings\temp\
And delete bundle.exe - if you are unable to, stop bundle.exe from running by end task on it through task manager. Then delete it.
Then press windows+r and type regedit and hit enter. Find HKLM\Software\vgroup and delete it. Find HKLM\Software\Microsoft\Windows\CurrentVersion\Run and delete that value you see listed in the msconfig screenshot above.
Restart and you should be free from this affliction. That is how you fix this, but seeing that you are infected with this, my previous advice would still be good to follow as this infection requires manual installation - which means to me that you are probably infected with other malware also. Let us know how it goes, and if there is anything that you cannot seem to get rid of.
http://sarc.com/avcenter/venc/data/adware.sahagent.html
Some really good guides on the forum can be found at these links, the second one will probably be most useful for getting any of your problems fixed, while the first guide is more involved for computers:
http://www.ocforums.com/showthread.php?t=319615
http://www.ocforums.com/showthread.php?t=307720
The schadentech link looks good for the basic process, but there are more details that may be useful in both the links above.