Winforms Desktop and Online are not compatible with Vista.
Directly from their site:
Windows Vista? Notification: Currently WINForms? Desktop and WINForms Online? are not compatible with the new Windows Vista? operating system and we are unable to support it at this time. Please check back at a later date for further information.
I can’t see why WINForms Online wouldn’t work but I would think it would because it is a web application. I haven’t tried it yet but they say it won’t work. So Vista is a no go until it does
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