INT 15 - DESQview v2.50+ - SEND MESSAGE 00h WITH ERROR RECOVERY                 
	AH = 12h
	BH = 80h
Note:	this function is identical to AH=12h/BH=00h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #00455)
SeeAlso: AH=12h/BH=00h


(Table 00455)
Values for DESQview error code:
 00h	no error
 01h	invalid values
 02h	alias invalid
 03h	handle valid but wrong type
 04h	invalid handle