I still don't know how to add the installdir into the PATH of the Windows System Variables after I went through the WIX tutorial.
I tried to use
Environment Id='UpdatePath' Action='create' Name='PATH' System='yes' Value='[INSTALLDIR]'
But there was no change in the Path after I installed the program. I can hardly find sample code of WIX anywhere. Please help me, thanks a lot!
You should be able to use:
<Environment Id="PATH" Name="PATH" Value="[INSTALLDIR]" Permanent="yes" Part="last" Action="set" System="yes" />
This should add a new entry to the environment path, set to [INSTALLDIR].