funsec mailing list archives

RE: Hey old people


From: "Larry Seltzer" <larry () larryseltzer com>
Date: Wed, 21 Dec 2005 14:37:32 -0500

I actually used DOs 1.1, I don't remember whether EXEs were available or
not. Are you sure they weren't? It would have meant a severe restriction on
the size of programs, and I don't recollect this. 

Yeah, that's right, and it was one of the reasons DOS 2.0 was important. You
might have noticed that EXE files begin with 'MZ' (and the DOS 2+ MCB chain
uses M and Z as identifiers). These are vanity marks for Mark Zbikowski,
lead programmer on DOS 2.0, but he wasn't even a Microsoft employee when DOS
1 was written.

Larry Seltzer
eWEEK.com Security Center Editor
http://security.eweek.com/
http://blog.ziffdavis.com/seltzer
Contributing Editor, PC Magazine
larryseltzer () ziffdavis com 


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