http://bugs.winehq.org/show_bug.cgi?id=24285
--- Comment #5 from aerilius@googlemail.com 2010-10-16 09:48:30 CDT --- As the log from above mentioned urlmon, I tried again with a clean wine 1.3.4 and added only urlmon(native). Then I started SketchUp and opened a webdialog. For all types of webdialogs, the popup window stays blank and the log ends with an unimplemented urlmon.dll.CreateUri.
(see attachment http://bugs.winehq.org/attachment.cgi?id=31301)
If it was implemented, would there be a chance that webdialogs work?