These are the steps to remove VNC from a machine.

1) Go to the command prompt: To do so, click Start, Run, enter CMD, click OK

2) A black window will open with a command prompt. Enter these commands at the comment prompt.  You will get an error message for the version not running. 

sc stop winvnc <enter>
sc delete winvnc <enter>

sc stop winvnc4 <enter>
sc delete winvnc4 <enter>

3) Delete the following directory: c:\supersalon\realvnc