Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!mit-eddie!killer!mjbtn!gsy1!root
From: root@gsy1.UUCP (Scott Yates )
Newsgroups: comp.sys.ibm.pc
Subject: Re: Norton SD program problem
Summary: Norton SD effects
Message-ID: <11@gsy1.UUCP>
Date: 23 Oct 88 00:23:36 GMT
References: <12440034836014@KL.SRI.COM>
Organization: Yates Pest Control, Rockvale, TN, USA
Lines: 25

In article <12440034836014@KL.SRI.COM>, AJ@KL.SRI.COM (Almon J. Bate) writes:
> Each time I use the SD Norton program I get a message that says
> "Invalid COMMAND.COM cannot load COMMAND, system halted" when it is 
> finished.  If I try it once again it works fine with no such 
> message.  I am using the program on a Compaq + 2.
> Any suggestions?

I believe the reason that you're getting this message is that Speed Disk
will frequently move files to make them contiguous. If your Command.Com
was fragmented (such as a dos upgrade), and especially if you were using
a program like fastopen, which memorizes the locations of the 'n' most
frequently opened files, or a disk cache program, or even a reasonable
number of buffers in your config.sys file, when SD prepares to exit to
dos, naturally command.com would be loaded at a certain cluster location,
which may no longer be correct. I once used SD while fastopen was running,
and after exiting, ran chkdsk, to be informed the 2397 cluster were not
found. A warm boot fixed all. Beware disk cachers that save writes. This
type situation could cause alot of frustration.


-- 
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