- support for refresh in shell namespace windows

Made some FIXME more informative.
Marked some FIXME as stub.
Added comments before some functions.

system parameters to the registry.

using that and not some polylines.

process_attach.

process.

  API string manipulation functions as far as possible
- switch to UNICODE compilaton
- remove launch_fileA() and tcscpyn
- don't crash in set_curdir() for NULL in the 'entry' pointer

dialog.

  hbmpItem = HBMMENU_CALLBACK, move the drawing origin to the top left
  of the item rectangle
- at the same time also make sure that the itemState field of the
 DRAWITEMSTRUCT is properly initialized
- do the drawing of the check mark before sending the WM_DRAWITEM
  message, some application likes to "overdraw" the checkmark.

in drawprim.

a BeginPaint.