Format of DESQview Internal Window Record (v2.31-2.60):
Offset	Size	Description	)
 00h	BYTE	internal window number???
 01h	BYTE	display page???
 02h	BYTE	video mode
 03h  3 BYTEs	???
 06h	BYTE	logical window height
 07h	BYTE	logical window width
 08h	DWORD	pointer to text video buffer
 0Ch 116 BYTEs	???