Help w/ ProVision Install-vantage 6.10

Ww are on Vantage 6.10.541 and have 1 license for ProVision.
I need to install ProVision on a new PC ( removing form 'old' pc). Our original install was over 1 year ago and we were given only the serial number and codes. I know we installed from the Progress 9.1D cd. However, when trying to install on my workstation:
) First, I'm told to shut down the Vantage/Progress Services running
on the server , install is aborted.
I'm guessing that the only way to install ProVision is to stop the Progress services that are running on the server, can anyone verify this for me, based on their experience?