IIS Error

Ok, I have a web application developed in Visual
Studio .NET. Until a few days ago, it worked fine...
then after I changed one HTML page (not even an ASP.NET
page), it suddenly stopped working, and every time I try
to access *any* page on this particular web server,
whether it's in the application I was working with at the
time or not, I get the following:

-------------------------------------------
Server Application Unavailable
The web application you are attempting to access on this
web server is currently unavailable. Please hit
the "Refresh" button in your web browser to retry your
request.

Administrator Note: An error message detailing the cause
of this specific request failure can be found in the
system event log of the web server. Please review this
log entry to discover what caused this error to occur.
-------------------------------------------

Now, I can't seem to find a log of this event in any of
the event logs I know of, and nothing I do seems to fix
the problem. Has anyone seen this before, and if so,
what might be the problem?

What OS are you on?
So the behavior happens with any page (HTM, ASP, ASPX) for a particular
application but other application on the same server work?
Can you create a new site and get the same behavior?

Here are a few articles that may be helpful:

825120 "Server Application Unavailable" Error Message When You Use Wfetch
http://kb/article.asp?id=Q825120

812406 PRB: Response.WriteFile Cannot Download a Large File
http://kb/article.asp?id=Q812406

811320 PRB: "Aspnet_wp.exe Could Not Be Started" Error Message When You
View an
http://kb/article.asp?id=Q811320


Thank you for choosing Microsoft
Miriam Green
Microsoft Developer Support

This posting is provided “AS IS” with no warranties, and confers no rights.
You assume all risk for your use. © 2002 Microsoft Corporation. All rights
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“Microsoft Security Announcement: Have you installed the patch for
Microsoft Security Bulletin MS03-026?  If not Microsoft strongly advises
you to review the information at the following link regarding Microsoft
Security Bulletin MS03-026
http://www.microsoft.com/security/security_bulletins/ms03-026.asp and/or to
visit Windows Update at http://windowsupdate.microsoft.com to install the
patch. Running the SCAN program from the Windows Update site will help to
insure you are current with all security patches, not just MS03-026.”