As you may know, the Product Code in each MSI is the primary identifier for a particular application. Different versions/releases of the application would each have a unique MSI but they could share the same Product Code.
If you create a new MSI in AdminStudio, either via Repackaging or using the included InstallShield Editor, the new MSI will have a new unique product code so it is differentiated from other applications, as it is not aware that the new MSI being created is the same application as an existing application, just a new installer.
Within the InstallShield Editor, under the General Information view, under the General section you can see the Product Code is shown (see green arrow below):
You may choose to replace the randomly generated GUID with the product code from you previous MSI package (just copy the GUID from the previous MSI and paste into this field on the new MSI, then save the MSI from here). This will "link" them as the same application as seen by the Windows Installer service on the end point machine. More info on changing the Product Code can be found in the the InstallShield Editor product documentation found here.
The Product Code should not be mistaken for the Package Code found under the Summary Information Stream (see red arrow above), as the Package Code must be unique. All nonidentical MSIs must have different Package Codes.
A good overview of MSI Product Codes are found in Microsoft's online product documentation found here.
As you may know, the Product Code in each MSI is the primary identifier for a particular application. Different versions/releases of the application would each have a unique MSI but they could share the same Product Code.
If you create a new MSI in AdminStudio, either via Repackaging or using the included InstallShield Editor, the new MSI will have a new unique product code so it is differentiated from other applications, as it is not aware that the new MSI being created is the same application as an existing application, just a new installer.
Within the InstallShield Editor, under the General Information view, under the General section you can see the Product Code is shown (see green arrow below):
You may choose to replace the randomly generated GUID with the product code from you previous MSI package (just copy the GUID from the previous MSI and paste into this field on the new MSI, then save the MSI from here). This will "link" them as the same application as seen by the Windows Installer service on the end point machine. More info on changing the Product Code can be found in the the InstallShield Editor product documentation found here.
The Product Code should not be mistaken for the Package Code found under the Summary Information Stream (see red arrow above), as the Package Code must be unique. All nonidentical MSIs must have different Package Codes.
A good overview of MSI Product Codes are found in Microsoft's online product documentation found here.
