Off-Topic: Office 2007 Weird Windows Explained

excel1This is a short note about an “aha” moment: ArsTechnica just explained why Excel 2007 windows that look like being documents are not quite that, and how I sometimes manage to start multiple Excel processes by mistake. It seems that Excel is not truly a multi-window app like Word is… but still an MDI app that fakes windows in a way that makes the Windows task bar and Vista task switcher fairly confused. Thanks for the explanation.