It occurred to me that VBouncer may have installed itself as a process or service. To find out if it is a service you need to give your machine the three-finger salute, open the task manager and click on the Processes tab. Scroll down the list and if you see it, end the process by first highlighting the process, ricght-clicking the mouse and then select the appropriate item from the menu provided.
To discover if it's a service, go to start, control panel, administrative tools, and select services. Scroll down the list and if you find it unstart it and select manual.
You need to then inspect the registry and wipe out all instances of this thing, which is another process that needs to be undertaken. Playing in the registry can hose you forever so make sure you have your system CD incase you need to rebuild everythinjg from scratch [Often a good idea anyway]. A simpler solution is to go to PCWorld's download page and select one of their registry cleaners. Install and run it. That takes care of a lot of problems. Anything else you need to take two asprins and call the doctor in the morning.
Always with an even keel.