sample code written to answer forum questions
AppBarTest for thread Change Windows 7 taskbar location automatically based on screen shape or on docking status http://stackoverflow.com/questions/12435503/change-windows-7-taskbar-location-automatically-based-on-screen-shape-or-on-dock
AutoCompleteDemo is a WinForms application that fills TextBox AutoComplete suggestions programmatically. You will get AccessViolationException: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." if you replace AutoCompleteCustomSource in the TextChanged event (https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/e599b2e2-3cda-43ad-b15f-a69b4fea1a75/dynamic-filling-of-textbox-autocomplete-not-working?forum=winforms).
AutomateShellWindow is a MFC application that automates Windows Explorer.
ColumnProviderHost is a MFC applcation that host Shell Column Provider extensions. Shell Column Provider extensions are discontinued in Windows Vista but some of them are still useful for a Windows Explorer replacement.
ComparePaths is a C# console program that compares paths in different forms (e.g. is C:\PROGRA~1 identical to C:\Program Files?).
EdiTransform is a C# console program that transforms EDI files.
FindDotnetInWindows is a C++ console application that finds .Net assemblies by using Shell Search Folder and IMetaDataImport.
HtmlCaretTest is a MFC application that moves the insert cursur in a webbrowser control.
MFCSafeArrayTest is a MFC application that creates a one deminsion safe array,
MFCWinFormHybrid for testing the effects of replacing the MFC message pump with a Windows Forms one
RemoveNodeFromXml is for walking around the bug Unable to open a channel that has SSLProperties in Mirth Connect without SSL Plugin #4238 (nextgenhealthcare/connect#4238), by removing settings for missing plugin before importing.
SelectCustomPlaces is a C# program that shows how to add custom places to a Vista stype file dialog.
SelenuimTest is a console program that automates a Google Chrome instance.