You can delete the CHAPI service from Windows through the following methods. CHAPI is required to run Control 5.1+ so this is not recommended except in cases where you are attempting to resolve a problem with CHAPI and a reinstall of the service is required.
Cautions
Warning - Do not delete CHAPI when users are logged into Control.
Steps
We must obtain the exact name of the CHAPI service from Windows in order to delete it.
Find the entry on the list that begins with CHAPI. Keep the Services window open.
Open a command prompt in Windows.
In Windows 7, click Start then Accessories and right-click on Command Prompt to choose Run as Administrator.
In Windows 8, go to Metro Interface and type cmd. A command prompt icon will appear, right-click the icon and choose Run as Administrator at the bottom.
Type the following command
-
Example:
sc delete CHAPI.ServiceHost_12556
Click on the Services window you still have open, press F5 to refresh the list of services. If the service still appears (a) wait a few minutes then refresh again or (b) restart the computer.
Source
Contributor: Brandon & Seth, Cyrious
Date: 7/5/2013
Version: Control 5.1