Installshield Product Code < INSTANT → >
Go to Project > InstallShield MSI Project > General Information > Product Code and click "New GUID." Then navigate to Media > Releases > Upgrades and create a new upgrade item. Set "Detected product code" to the old version's Product Code.
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One of the biggest mistakes a setup developer can make is changing the Product Code for a patch or minor update. If you do this, the new installer will have no idea that the original product is installed on the target machine. It will attempt a fresh, side-by-side installation of the "new" product, leaving the old version untouched. This leads to confusion for the user, wasted disk space, and potential application conflicts because both versions now think they are the primary installation. installshield product code
However, if you want to deliver a patch and allow the product to be recognized as a new version for future upgrades, you have two options:
Changing a Product Code after a product has shipped is a serious decision that effectively signals the birth of a new product, breaking the chain of upgrades for the previous version. By following the guidelines and best practices outlined in this guide, you can leverage the full power of the Product Code to build a robust, reliable, and professional installation experience for your users. Go to Project > InstallShield MSI Project >
Windows uses this specific GUID to track the application's presence on a target machine. When your installer runs, Windows maps this Product Code to vital system registries, primarily under: HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall
Do you need to programmatically retrieve the code using or C# ? Share public link This link or copies made by others cannot be deleted
A Product Code is a string representation of a GUID, formatted with braces and hyphens, such as 12345678-ABCD-1234-ABCD-123456789ABC .
If you want the new version to stand alongside the old version (side-by-side installation), you need a new Product Code AND a new Upgrade Code. If you want the new version to replace the old version, change the Product Code but keep the Upgrade Code identical.
If you want, I can:
: For those using build servers, you can set the Product Code dynamically using ISCmdBld.exe
