This is a duplicate of the post in the Functional Testing forum.
http://h30499.www3.hp.com/t5/Unified-Functional-Testing/UFT-11-5-install-fails-during-DCOM-settings/m-p/6328267
http://h30499.www3.hp.com/t5/Unified-Functional-Testing/UFT-11-5-install-fails-during-DCOM-settings/m-p/6328267