Re: command.com wakes up all disk drives on XP (latest patch level

Hi,
run procmon capturing all disc accesses. Let it run for a while and search
for command.com. I bet you will see frequent access to the old emulator.

Agree that it doesn't make sense, but it is happening on my machine. E.g. I
have one exe file (it has not been installed, I just run it directly), which
stats up command.com when I run it.

--
tunk


"Ron Martell" wrote:

tunk <tunk@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

I'm having a PC with 3 harddisks. One main disk (C:\) and two (E:\ and F:\)
for achiving.
I have turned on the power management such that hard drives are turned off
after 10 minutes (E and F drive). This I do to reduce noice level. The C
drive never turns off, but that's ok.

This works fine until I recently had to reinstall windows. Now the E:\ and
F:\ are woken up frequently (at least once an hour).

I have isolated command.com as the reason for waking up the disks. It's
easly testable by just start the shell (typing command.com in a cmd shell).
The command hangs until all disks are woken up.

A lots of programs are using command.com, so I believe that getting control
over command.com's disk access would solve the problem.

Question: why does command.com wake up sleeping drives? And how can I force
command.com to cool down and only care about C:\?
Also any other tips and triks on how to controll disk access. It seams that
lots of problems loves to access all disk drives available.

The version of command.com is 5.1.2600

Thanks for any help.

What programs are using command.com? It is only included in Windows
XP for rare compatibility issues with some very old applications. The
ms-dos emulator in Windows XP is cmd.exe and that is what should be
used rather than command.com except for those rare apps which
specifically check for the existence of command.com

Good luck

Ron Martell Duncan B.C. Canada
--
Microsoft MVP (1997 - 2006)
On-Line Help Computer Service
http://onlinehelp.bc.ca
Syberfix Remote Computer Repair

"Anyone who thinks that they are too small to make a difference
has never been in bed with a mosquito."

.

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