1 reply to this topic

[dorelsturm]

Hi there,

I have a small Basic MSI installer that just contains a .msm module form a company. My Basic MSI installer is a "normal" installer: has a feature, no components, product version and name. It works very well.

Now I got form that company a new .msm module and I want to create a new Basic MSI installer that will do a minor upgrade of the first one. I changed the Product Version but not the Product Code and Upgrade Code. The package code is changed each time a build a new installer because I left the default stuff in Install Shield.

The problem is that when I want to do a minor upgrad I get error ERROR_PRODUCT_VERSION (1638). Seems that my new MSI installer is somehow same as the old one.

Whan do I need to change in the new MSI instlaler in order do get a "new" one. The .msm module I have installs just some DLLs which of course in the new version have different versions.

Thanks for your support.

[Stefan Krueger]

You need to launch your minor update msi like this:
msiexec.exe /i your.msi REINSTALLMODE=vomus REINSTALL=ALL
For more information read the page about updates here at InstallSite.org and in the MSI SDK.