Software Deployment

If you keep the registry keys in the registry table, it gets installed onto the system during installation. If you are specific using Custom action only, then you can create a .reg file and call it in the commandline CA "Install from Destination". Use condtions "NOT Installed" (runs during installation) or "REMOVE" (runs during uninstallation)

Thanks for your reply..

I know the process that you have stated but i want to know if this can be done only when the package installation is successful.

Place your deferred custom action right before the Install Finalze action in the Install Execute Sequence.

If the installation of your MSI is not successful at some point, the MSI will do a rollback action and your reg keys are not installed.
The reg keys will only be installed if all actions which are executed before your custom action are successful.

Perhaps it's possible to schedule actions to "on error" but a short search on google didn't bring me any infos about that. Somebody knows anything about that?

Is it me? Is it?

Why complicate things? Just add the registry data in your package. If it's present, the package is installed, if it's not, then it's been uninstalled.

thanks all of you ...

i have got enough ideas to do the required.

But if I understand him correctly, he wants the reg keys always installed except when the package installation fails.

as vbscab said if the package fails it rolls back and as such registry is not installed.