How can I launch a message before uninstallation?

[fgmwww]

Hi,

I'm quite new using Installshield, sorry if I ask very simple things.

Here is my problem:
I try to uninstall the application when the application is running.
It looks like the installer uninstall everything but it doesn't.

There is any option or installscript in installshield that shows a windows showing that first is needed close the application to uninstall?

Thank you very much

[KEiGHT]

if (AskYesNo ("Your message here", NO|YES)then
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