INT 50 - PC Thuis Organizer Shell - PROMPT YES/NO

	AX = 0005h
	ES:BX -> prompt string (ES:0000h if no prompt)
Return: AX = key pressed
	    0000h "J" (Dutch "Ja" = "Yes")
	    FFFFh "N" (Dutch "Nee" = "No")
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: AX=0008h"PC Thuis"