http://bugs.winehq.org/show_bug.cgi?id=21673
--- Comment #15 from Nikolay Sivov bunglehead@gmail.com 2010-02-18 00:49:22 --- (In reply to comment #14)
Created an attachment (id=26285)
--> (http://bugs.winehq.org/attachment.cgi?id=26285) [details]
Output from 'winecfg' after clean .wine
Fails to load builtin msxml3.dll?
Yes, it's a problem. msxml3 (and msxml4) won't work in Wine without libxml2. Personally I don't know what ELFCLASS64 error means, are you sure you don't run 64bit machine+OS and 64bit libxml2?