Problems with Unistall key in registry

[Gogo]

Hello we have such a problem. When using Advance Installer 1.8 after installation of our software this key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\our software guid

"InstallLocation" value is empty

We try to use this VBI script in "Custom Actions" - "Commit"

ARPINSTALLLOCATION=[INSTALLDIR]

But it is not executed.

Please advice how we can have this "InstallLocation" with the exact path of where our software was installed.

Thanks in advance!

[Cata]

Looking's on my PS's registry that value is empty for most of the programs I have installed.

You should use the [TARGETDIR] Windows Installer property or you could author a registry key having [TARGETDIR] as its value.

[Gogo]

Can you please explaim me with details (like on a moron ) how exact to use [TARGETDIR] in VBI script....

[Cata]

Session.Property("TARGETDIR")

This code returns the value of TARGETDIR property.