Software Deployment

Have a look at Ed's description (second post) at http://forums.altiris.com/messageview.aspx?catid=20&threadid=47807&enterthread=y

Awesome, thanks. I just found this too

http://msdn2.microsoft.com/en-us/library/aa370840(VS.85).aspx

It exists on the internet.. it's just a matter of correctly asking the question :)

You could use the Upgrade table and and make sure to use the msidbUpgradeAttributesOnlyDetect attribute bit.
Then use the <ActionProperty> property as a condition to stop the old version from being installed over a newer version.

Thanks for the reply. I can't get it to work and for the sake of discussion, let's assume we have App1.0 and App2.0. 2.0 will always remove 1.0. What I want is, when you install App1.0, it will not install if 2.0 is currently installed or basically only install itself or remove any previous versions. Doing what you said should accomplish this. How exactly would I take those steps? This is what I tried and it's not working:

- Kept upgrade codes between 1.0 and 2.0 the same, different product codes.
- Added a property called NEWERVERSIONFOUND to the 'SecureCustomProperties' property.
- Added 1.0 upgrade code to its own upgrade table. I set version min and max to 1.0. I then changed the 'Attributes' to 2. This sets the bit flag for msidbUpgradeAttributesOnlyDetect.
- Set the 'ActionProperty' to NEWERVERSIONFOUND.
- Created a condition in Execute Immediate with. If NEWVERSIONFOUND then Terminate Installation END

Installed 1.0, then 2.0. 2 removed 1. Installed 1 and it did not terminate installation.

Help!