returns 0 on error and sets last error to ERROR_INVALID_FLAGS.

duplicate work.

WINEPRELOADRESERVE environment variable.

According to MSDN, length should be returned when lParam is NULL.

SHCNRF_NewDelivery, we should send a LPNOTIFICATIONLIST and the
process id of the caller.

that is empty.

- fix mouse Acquire which switched right and middle buttons
- reset the mouse cursor at its original location on Unacquiring the
  device

the separate dropdown itself.

add a handler for the %S flag.  That requires a conversion to unicode
and knowledge of the current ASCII code page.

get rid of the W->A cross calls.

More accurate ms calculation.

present.

A/W conversion code, remove useless (and wrong) hungarian notation
from function prototypes.