Will 'set PHPRC C:\php' work? Can I advise to go to Start->Run and type that? (if that works?)
You cannot set PHPRC through the registry, it is an environment var. It needs to be set the same way as the PATH var is extended. put the set command into autoexec.bat on Win98 and go through adding a new environment var on the UI on newer systems. It is 98% similar to the extension of PATH, you just need to add a new var and not edit an existing one.
Yes you can! At least on win NT/2k/XP/2003 (HKCU\Environment). I doubt it works in windows 9x/Me.
Maybe the best is to set it throught the Control Panel->System->advanced->Environment Variables
Yep, since it is already documented for the PATH var, so it just needs to be copy-pasted to a new faq entry, or that faq entry needs to be generalized/extended.
Goba
