SL>  Maybe the part of resizing would help me. Right now i'm just using Int
SL> 21/49h  to free _all_ memory and allocate after with int 21/48h it     
SL> worked fine but  I wonder if there is another way to free the all      
SL> memory but 64k of the  current Com program.                            
 mov bx,1000h ; 64k (in paragraphs)
 mov av,4ah   ; "change memory allocation"
 int 21h      ; I'm assuming ES=PSP
                        
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