- Login to your control panel
- Select your domain under DOMAINS > DOMAIN NAME
- Select HOSTING > SETUP
- Under Services section you can activate or deactivate PHP to run as an ISAPI extension or not
So for ease of use the CGI version may be the better option, but for stability we recommend the ISAPI version. There are actually even issues with some applications running PHP on IIS in CGI mode. Some of the common issue’s you may run into are CGI Timeouts, which can be adjusted by extending the amount of time you can take to execute CGI scripts. Another difference in the CGI and ISAPI modes are, ISAPI is compiled and hooked into the server at load time, therefore it tends to be faster, and more robust, while PHP in CGI mode needs to be loaded then unloaded every time a call is made for it.
