My program needs to open a series of information windows when requested by a user, and would like to implement some kind of custom grouping on the windows 7 taskbar.
De
I solved it by using the Windows API Code Pack for .NET and the following code:
TaskbarManager.Instance.SetApplicationIdForSpecificWindow(window, guid);
Window assigned with the same id will be grouped together - windows with a unique id will have a separate taskbar icon.