How to install several instances of the same application on a computer?

Hej,
I have an application in LV 2009, where I have created an installer. The installer installs to a directory called \Receiver relative to the Program Files directory. If I install this once to a computer, everything is OK.
However, I want to install the same application twice on the same computer. There should be no conflicts between the two applications, since I can configure them to work on different directories and ports. But if I call the installer again, and selects another directory, nothing is installed and I get the message "Installation Summary - No software will be installed or removed". It seems like the installer ignores that I have selected another directory, and just uses the default directory, relative to the Program Files directory.
Anyone knows the trick, how to install several instances on the same computer ?
BR, Jan
Jan Nielsen
Freelance system analyst and LabVIEW programmer

Hi Jan,
This is so because each installer has a GUID that is used to check whether the application needs to be upgraded or not. (It's a Microsoft function).
What you can do is create a new installer with a different GUID (copy the installer in the projects), and check witha  text editor whether this GUID has changed.
But any specific reason you need two seperate installs? You can run the application twice with a specific INI token:
allowmultipleinstances=True
Ton
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