downloads crashing computer?

2 Jan 2007 4:37 PM

Joe Granto

I am running Windows XP Professional SP2 with all current hotfixes.
Recently, and I cannot narrow down things to an exact date, I have
been experiencing an issue where downloading a file from my system via
web (IIS) or FTP causes the system to lock up. Hard.

For example, I took two ZIP files and placed them in an existing
folder under \inetpub\wwwroot. This existing folder is where I keep
dozens of other files, and my IIS implementation has worked flawlessly
for years. When I download the file from the local system as a test,
it works fine. However, if I download the file from another system,
the download gets about half-way done and the IIS systems locks up
hard. No blue screen, just totally unresponsive. It is not pingable,
it GUI does not respond, CTRL-ALT-DEL does not work, it is dead and
has to be power-cycled.

Similarly, I put these files under a directory in \inetpub\ftproot and
tried FTPing them. Once again, when I FTP from a another system, it
locks up my machine hard.

The weird thing is that this only happens with NEW files, and NOT all
of the time. My existing files under IIS and FTP download just fine.
The two new ZIP files were just JPG files from my digital camera which
I created, so there is no problem with them. However, they locked my
system 4 out of 4 times during testing. However, today I recreated one
of the ZIP files, 26MB in size, and was able to download it just fine.

My web page SEEMS to be working just fine, except when I download new
files. I use URLScan to configure permissions and ISAPI fiters, but
these are untouched. Please note that I have other ZIP files that are
downloadable, so the ISAPI filters are fine, and so are the
permissions. I double checked both.

Rebooting obviously did not fix things, since the original problematic
files caused me to reboot 4 times. I am at a loss to explain why those
files caused a crash. I think it is probably a network or IIS issue.
Anyone have any ideas?

2 Jan 2007 6:18 PM

Pennywise

Joe Granto <joe.granto@NoSpam.com> wrote:

>For example, I took two ZIP files and placed them in an existing
>folder under \inetpub\wwwroot. This existing folder is where I keep
>dozens of other files, and my IIS implementation has worked flawlessly
>for years. When I download the file from the local system as a test,
>it works fine. However, if I download the file from another system,
>the download gets about half-way done and the IIS systems locks up
>hard. No blue screen, just totally unresponsive. It is not pingable,
>it GUI does not respond, CTRL-ALT-DEL does not work, it is dead and
>has to be power-cycled.

Just a suggestion, run process monitor in the foreground, when you
lock up see what was going on at the time.
http://www.microsoft.com/technet/sysinternals/processesandthreads/processmonitor.mspx
shortest http://tinyurl.com/yeu8vs

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