Summary

At the end of the setup the error message “Error 1721: There is a problem with this Windows Installer package”. Setup then executes a rollback.

Details

A possible reason is that you try to install Elvis for XP Media Center on the wrong operating system. The required operating system is Windows XP Media Center Edition 2005 (see http://www.microsoft.com/windowsxp/mediacenter/), other XP editions like XP Home or XP Professional do not work.

The error message may also appear if you use the version XP Media Center 2005 Edition Update Rollup 2. This version is supported only since Elvis 2.5.458.