uninstallation issues.

[AstroMed_Glen]

Hello,

Hi, like many of you, as I develop, I create executables as I go to test them out. I have noticed that sometimes, I do not get the uninstall dialog before I get the install dialog. This usually results in multiple entries of the same program in my Control Panel and often other complications. I have not noticed a consistent change that I am making when unintstall does not appear first. What does the uninstallation look for? Matching Product IDs? I have not changed them. Anybody else experience this?

Glen D.

[Matt_F]

Hello AstroMed Glen,

An application should uninstall if you try to install an application with the same product ID. The best way to ensure that multiple builds have the same product ID is to create a build script that all builds are based off of.

If the product ID is the same between versions we will need to know more about your system. Specifically your OS, LabVIEW version, etc.

[AstroMed_Glen]

Hi Matt, Thank you for answering my post. I am using LV 7.1 on Win2000. I do use build scripts. But there seem to be some conditions when the product key changes without hitting the generate button. Are there any changes you could make that would trigger LV to generate a new Product Code.
Generally I load in a build script, immediately it will put an asterix next to the file name in the title bar. This scares me cause I haven't done anything yet. If no changes to the script need to be made I will build my app. Upon hitting DONE it will ask me if I would like to save changes. I hit no cause I didn't make any changes. If I my code changes require me to make changes to the script I will save then of course. And thats it. Usually it works fine, but once
in a while it will install without the uninstall first. I'll try to find a more consistent cause. My co-worker is experiencing the same thing. I think they have found some insight too.

[Matt_F]

Hello AstroMed Glen,

Was this script originally created in a previous version of LabVIEW? If so, a conversion may be taking place every time we load the script. We can check this by rebuilding the script from scratch in LabVIEW 7.1.

Also, does the product code change every build, or only sometimes?

-Matt F