MAKEMSI quickly and reliably creates MSI files in a non-programmatic way\Windows Installer FAQ (the basics)Return Codes and Error Codes or TextError Codes1720 - There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor. Custom action [2] script error [3], [4]: [5] Line [6], Column [7], [8]

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1720 - There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor. Custom action [2] script error [3], [4]: [5] Line [6], Column [7], [8]

This message implies the script did not start executing and so probably has a syntax error or another issue preventing its execution.

I have seen this code where the script has started execution but not completed "initialization", for example where it terminates with an issue before encountering the "VbsCaEntry" command. So keep this in mind when diagnosing the issue, a MsgBox() or two will quickly resolve this issue if it happens to you.

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