uninstall: detectprocess - if it is running, don't uninstall

[davidsmith]

Is there a way to stop an uninstall from running if detectprocess detects that a Windows process is running?

[Bogdan]

Hi,

Yes this is possible. Follow these steps:

- go to Custom Actions page
- right click Uninstall → Show Standard Actions → Before File Installation → InstallInitialize
- right click InstallInitialize → Add Predefined Custom Action → DetectProcess
- right click InstallInitialize → New Custom Action → Error Message

“DetectProcess” should have the Expression field from the Execution Condition group set to this value:

Code: Select all

 (REMOVE="ALL") 

“Error Message” should have the Expression field from the Execution Condition group set to this value:

Code: Select all

 (REMOVE="ALL") AND (AI_PROCESS_STATE="Running") 

The links I provided above will help you understand how the two predefined custom actions work.

Regards,
Bogdan