MDI_RestoreFrameMenu against repetitive calls.
- Use Windows default icon for system menu bitmap if there is no one
  supplied by a child window as Windows does.
- Use GetSystemMenu() to load system menu for a child window,
  otherwise there is no way to generate WM_SYSCOMMAND menu messages.
- Restore check in WM_SIZE MDI child handler erroneously removed
  earlier.

a separate libdxguid library.

Visual C++ section.

should go to the standard process heap (reported by Ge van Geldorp).

byte. If single byte character is used, the upper byte is set to 0.

value is 0.
Visio expects that separator in the Window menu has ID 0.
Cope with a destroyed menu handle in WM_MDIREFRESHMENU handler.

glutInitWithExit functions.

  RtlCreateUnicodeStringFromAsciiz()
- directly call InitCommonControlsEx()

- remove some superfluous commas

Fix a couple of spelling errors.

  without any selected item; preserve return error codes.
- ISF_Desktop_fnGetDisplayNameOf(): don't initialize whole character
  array with zero.

  E_OUTOFMEMORY.
- IShellFolder_fnGetUIObjectOf(): preserve return error codes.
- IShellFolder_fnGetDisplayNameOf(): don't initialize whole character
  array with zero.

SHELL32_GetItemAttributes(): support for SFGAO_LINK attribute.

Implemented most of the GetTheme* functions.

folders rooted under "My Computer" folder, better error handling.

empty path string.

output to be dashed.

Check whether _MSC_VER is defined.

with PSDK.