I try to put a license key into the registry during installation in Install Shield Express. This is a legacy application, that I ported from Install Shield 6.3, so I tried to keep the path HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\. I put a dll that computes the license key into [INSTALLDIR] and call a function in "Custom Actions During Installation/After Register Product". However RegCreateKeyEx fails in this function with "No Permissions".
Make sure that you set the In-Script Execution setting to "Deferred Execution in System Context" so that your custom action will execute with elevated privileges .
