Abort installer if application is opened

[marceloavf]

Hi everyone!

I'm creating an installer and when it's running to install and user let some file open it goes to MsiRMFilesInUse Dialog, but at the end it's not closing the app, so I decided to create a custom action to allow us to have more control under it.

The problem is that I can't finish the installer in case that the user cancel to end the app proccess, I'll list below the proccess that I'm trying to do it.


First of all I detected if the proccess is running


Then I ask the user to allow us to close it or cancel


If OK button is pressed, I close the app


If CANCEL button is pressed, I try to abort the installer, but nothing happens at this point and installation continues normally


Thank you!

[Catalin]

Hello,

In order to achieve what you want, you can use a "Display error message" instead of a VBScript custom action.

There are two ways of running a VBScript custom action. One of them is to run it as an inline script (as you did) and the second one is to use a "Launch attached file" custom action. The main problem here is that an inline VBScript custom action return code is always interpreted by Windows Installer as a success, thus you can not force your installation to fail using it. If you want to force your installation to fail based on a VBScript custom action, you should use a "Launch attached file" custom action instead.

Or you can also use a "Display error message" custom action, the installation will fail upon pressing the "Cancel" button from the "MessageBox", giving the user a message which will inform him that the installation can not continue if the does not stop / terminate the respective process.

In order to achieve those said above, you can go to "Custom Actions" page, add a "Display error message" custom action with the message that you want and the condition as it follows:

Code: Select all

BTN_PRESSED <> "IDOK"

This way, if the user presses the "Cancel" button from the "MessageBox", the installation will fail.

Let me know if this helps!

Regards,
Catalin

[marceloavf]

Hello,

In order to achieve what you want, you can use a "Display error message" instead of a VBScript custom action.

There are two ways of running a VBScript custom action. One of them is to run it as an inline script (as you did) and the second one is to use a "Launch attached file" custom action. The main problem here is that an inline VBScript custom action return code is always interpreted by Windows Installer as a success, thus you can not force your installation to fail using it. If you want to force your installation to fail based on a VBScript custom action, you should use a "Launch attached file" custom action instead.

Or you can also use a "Display error message" custom action, the installation will fail upon pressing the "Cancel" button from the "MessageBox", giving the user a message which will inform him that the installation can not continue if the does not stop / terminate the respective process.

In order to achieve those said above, you can go to "Custom Actions" page, add a "Display error message" custom action with the message that you want and the condition as it follows:

Code: Select all

BTN_PRESSED <> "IDOK"

This way, if the user presses the "Cancel" button from the "MessageBox", the installation will fail.

Let me know if this helps!

Regards,
Catalin

Excellent Catalin, I get it working using `Display error message` and the condition below:

Code: Select all

BTN_PRESSED AND BTN_PRESSED <> "IDOK"

Because sometimes the message box doesn't appear.

Thank you!

[Catalin]

You're always welcome!

I am glad you got this working!

Regards,
Catalin