I noticed a plea for help from Duqu researchers:

We would like to make an appeal to the programming community and ask anyone who recognizes the framework, toolkit or the programming language that can generate similar code constructions, to contact us or drop us a comment in this blogpost. We are confident that with your help we can solve this deep mystery in the Duqu story
Source:

http://www.securelist.com/en/blog/667/The_Mystery_of_the_Duqu_Framework

Anyone want to help Kaspersky's guys solve the mystery?