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.