http://bugs.winehq.org/show_bug.cgi?id=10723
--- Comment #1 from Yolande Haneder yolande@haneder.biz 2007-12-09 00:46:26 --- Did you upgrade your .wineprefix with removing the old wineprefix and doing wineprefixcreate?
I mean in 0.9.50 *both* msvcp80.dll and the manifest are there and running vcredist is not an issue (at least with win 2000, with XP it is not completing but you still get the manifestst.).