Error 1720



Installation Error 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 LConditionErrBuilder script error -2146827837, Microsoft VBScript runtime error: Object not a collection Line 32, Column 1,  


Cause-- This problem is caused by the absence of system registry values related to COM automation. It's unknown to us (as well as Microsoft) what is removing these important registry values, but their absence may cause a variety of failures in applications.

Workaround-- Add the missing values, as per this registry file:

Windows Registry Editor Version 5.00










The installer should then continue normally. Be aware that if this value was removed by some application then there may also be other required registry settings missing. You should remain on the look-out for other anomalous behavior.

Old KB# 11493
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