Installshield Product Code -

Many developers treat the Product Code as just another GUID (Globally Unique Identifier) generated by a wizard. However, getting it wrong can lead to "side-by-side" installation disasters, orphaned registry entries, or the dreaded error: "Another version of this product is already installed."

: You can click the Generate a new GUID button (...) next to the Product Code field to create a new ID. Rules for Upgrading : installshield product code

He navigated to the . There it was—the Product Code , a 38-character GUID: E4B2... . This unique string was the software’s social security number. It told Windows, "I am this specific version of this specific thing." Many developers treat the Product Code as just

Key takeaway: The is the family name; the Product Code is the first name. Changing the Product Code tells Windows, "This is a new version," while keeping the Upgrade Code tells Windows, "This is part of the same family." There it was—the Product Code , a 38-character GUID: E4B2