VX2 is primarily a data mining form of spyware that monitors your activity and phones home. It can also install additional programs without you knowing which has a tendency to bring in pop ups and other bugs. There isn't anything good that comes from this and should be removed immediately. This can be pretty hard to completely remove from your system.
VX2, NetPal, Sputnik, VX2 RespondMiter, VX2.ABetterInternet, Transponder, Blackstone Data's Transponder, Blackstone Data's Transponder
Tip: this is only a list of known files/locations. You will want to do a search by the name of the file to see if they're on your system.
A while back I wrote a guide to Register/remove DLL or AX files which you will need if you don't know how to unregister these files.
Each file is in several locations so you'll need to search for them and unregister + delete them in every location you find.
You should be back to normal IF this was your only problem. I suggest you post in our HJT forum since its not likely that this is your only bug. Read this first