I started this Work Item here (http://codeplex.codeplex.com/WorkItem/View.aspx?WorkItemId=21733
), sorry for the cross-post. This is probably where it will get attention and a fix.
When committing to CodePlex using TortoiseSVN, the 3rd party libraries and NAnt.exe files get corrupted. If you attempt to do an SVN CheckOut to a new folder, your binaries are invalid.
For example, compare the committed StructureMap.dll (http://dbfriend.codeplex.com/SourceControl/changeset/view/785#48994
) with the one I'm attaching to this case.