I was trying to write a program that would read the in file .EXE header and determine where the IP starting point is, and DW at 20 bytes in -14h, worked sometimes but failed other times. Do I need to add up the size of any relocated sectors or something? What am I missing here?

Offset 20 is the initial IP (e_ip)
Offset 22 is the initial CS (e_cs)

Offset 22 was zero also, yet IP started 500 bytes in, so I started experimenting, Offset 8, times 16 added to, offset 20 gave me the number I needed, and since it is for my .COM based disassembler I added 100h, and now it seems to line up with the labels so I can find the IP entry point of a .DIS .EXE file easily. I tested it on 10 files and it did ok. Only time will tell, but I'm not exactly stuck anymore. I don't really have full and accurate PSP EXE header info available to me, so I'm a bit lost in trial and error. I was using EXEHEADR.COM in my DIS104.ZIP to get offset info. Thanks for trying for me Revolution, I don't get much usable feed back.

UPDATE, Load file to anEXE: label

MOV AX,[anEXE+8]
ADD AX,[anEXE+22]
SHL AX,4 ;= MUL x16
ADD AX,[anEXE+20]
got me the number I was looking for, and ADD 100h got me the Label # DIS.com needed.
Well, that is as far as I made it so far.
Thanks revolution, I used your tech tip after all.