Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!rutgers!husc6!linus!philabs!ttidca!svirsky
From: svirsky@ttidca.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: need help with TSR's
Message-ID: <1304@ttidca.TTI.COM>
Date: Fri, 2-Oct-87 15:07:57 EDT
Article-I.D.: ttidca.1304
Posted: Fri Oct  2 15:07:57 1987
Date-Received: Sun, 4-Oct-87 07:14:16 EDT
Reply-To: svirsky@ttidcc.UUCP (William Svirsky)
Distribution: world
Organization: Citicorp/TTI, Santa Monica
Lines: 15

---

I  am writing a TSR for an IBM PC assembler class and I need some help.
I know the basics, but what I need to know is if there are any particular
pitfalls to avoid.  For instance, I've heard about an undocumented
IN_DOS flag that should be checked whenever the TSR is invoked.  Why should
it be checked?  Why is it undocumented if it is so necessary?  How do you
check it?  Are there any other problems involved in writing TSR's?  If
you can email me any help, I'd appreciate it.  Of course I'll also post
a summary of any responses for the net.  Thanks in advance.

-- 
Bill Svirsky, Citicorp+TTI, 3100 Ocean Park Blvd., Santa Monica, CA 90405
Work phone: 213-450-9111 x2597
svirsky@ttidca.tti.com | ...!{philabs,psivax,trwrb,csun}!ttidca!svirsky