InstallAware

I am using Group Policy for deploying my products to client machines on a domain. I can successfully deploy the product, but when I try to uninstall it, I receive the message from the Application Event Viewer that the product is being removed. When I inspect the client machine, the product, all the application files, desktop and start menu shortcuts and registry entries still remain. Even the Add/Remove entry doesn't get removed in ARP.

Now in order to determine the cause of this, I created a new Basic Setup that just installs the product executable, desktop and start menu shortcuts. I used the Group Policy wizard to wrap the installer into an MSI package. I was able to deploy the product and uninstall it successfully. But when I added some code for handling multiple instances, the product deploys, but it won't uninstall properly; product app, shortcuts, registry keys, Add/Remove entry are left behind.

So just for kicks, I created the Install Multiple Instances sample installer, without any modifications and deployed it using Group Policy. The deployment and un-installation worked just fine. Once I made some edits to the section of code dealing with multiple instances (commenting out a couple lines), the MSI package again doesn't uninstall properly.

I don't know if the Multiple Instance code that I add to my installer is the source of my problem because I have created two plain setups, one with and one without the Multiple Instance code and everything works fine. But if I add the Multiple Instance code to my setup or make any edits to the code in the Install Multiple Instances sample, then the MSI package "craps" out (for lack of a better term) when it is removed.

Any insight into this issue would be greatly appreciated.

Scott Deschenes

Interesting one! Can you send us your modified project?

Have you tried enabling verbose logging to see waht is failing?

Here is the modified project. It is the Install Multiple Instances project. Notice I commented out the message box, the "if TRANSFORM equals YES" statement and the "if TRANSFORM equals CANCEL" statement. I only left the Transform Instance command.

File Attached:

My Project.exe

Can you send us the project files so we can debug?