http://bugs.winehq.org/show_bug.cgi?id=26227
--- Comment #1 from Alexandre Julliard julliard@winehq.org 2011-02-24 04:17:45 CST --- Adding a global atom should work just fine. The only potential incompatibility is that GetClipboardFormatName would fail for something that's not actually a clipboard format. Please show us an app that depends on this.