Installer Problem/Question

If someone tries to uninstall a version of a previous program, and part of it is running, the uninstaller still says it completed ok even though the .exe and a loaded dll that were installed were not removed.  Is this normal?  

Also, how can I ensure that an .exe is not running when the installer begins?  I know how to detect it in an .exe, but what do I do to stop the installer during the execution of the install Script that checks to see if this exe is running?
LVL 5
jjacksnAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

TheAvengerCommented:
Yes, this is normal with MSI installers. Sometimes they mark the files to be removed next time you restart the system. So try restarting the system and see if the files are still there.

To detect if the app is running: create a very small application that checks if the application is running and returns a result that is not 0 if it is running and 0 otherwise. Then put a call to this application in the uninstall part of the script. What will happen is this: the small app is called. If it detects the main app running, it will return non zero result. The installer will receive this and will say that a required component failed during the process and will rollback (so no uninstall). You can also review the conditions possibilities of the setup projects and play with it a little in the same way.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
C#

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.