CustomAction - InstallDir is not accessible

[sarabjeetd]

I have a Custom Action(InstallShield script) which is set for Immediate Execution. I have tried to change the Install Exec Sequence but I cannot access the InstallDir in the script. Any advise on what sequence to use would be much appreciated.

MsiGetProperty(hMSI,"InstallLocation",installLocationStr,nvSize);

-Sarab

[sarabjeetd]

If I try to access INSTALLDIR directly in my script, it is set to C:\\ instead of the user selected value: C:\\Program Files\\\\
Also, my project is a Basic MSI project.