Saturday, January 24, 2009

C++: MSI GUID Generator

NewGuids is a utility prepared for internal use at Attachmate that provides for quick and reliable upgrades to WIX MSI installer XML source files. It is useful where the set of component GUIDs must be different from one version of the product to the others. It has been most valuable in the upgrade of successive versions of installer modules for third party products such as the Sun Java JRE.

In the case of upgrading a typical Java JRE from one update to another this reduces the time previously required for manual replacement of approximately 4000 GUIDs from several hours to a matter of only seconds.

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