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Q237804: BUG: Deploying Shadow Files to a Live Web Site Fails

Article: Q237804
Product(s): Microsoft SourceSafe
Version(s): WINDOWS:5.0,6.0; winnt:4.0
Operating System(s): 
Keyword(s): kbinterop kbInternet kbSSafe500bug kbSSafe600bug kbIIS kbGrpDSSSafe kbiis400bug
Last Modified: 01-MAY-2001

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The information in this article applies to:

- Microsoft Visual SourceSafe for Windows, versions 5.0, 6.0 
- Microsoft Internet Information Server 4.0 
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SYMPTOMS
========

Files shadowed to a live Web site don't get updated.

You may not get any error messages or you may get:

  Error "File <path being shadowed to> is already open"

CAUSE
=====

IIS 4.0 caches files to speed up Web requests. This caching keeps the file open
for a period of 30 to 60 seconds. During this time, if a shadow occurs, that
file is locked and cannot be updated.


RESOLUTION
==========

This issue will be resolved in the next major release of IIS version 5.0.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

MORE INFORMATION
================

This problem occurs because IIS 4 locks the file open in the Web browser. The
shadow command cannot write to the file because the file has a handle already
open. If the shadow command is attempted 60 seconds later, it will succeed.

Steps to Reproduce Behavior
---------------------------

1. In the Visual SourceSafe Administrator, create a shadow folder for any Visual
  SourceSafe project that is a Web site on an IIS 4.0 server. Select the Set
  read-only flag for all files checkbox.

2. Shadow files to the Web site.

3. Open one of the shadowed files in a Web browser through the URL, like
  "http://webserver/test.htm".

4. Check out and edit that file in Visual SourceSafe using any editor, such as
  Microsoft Notepad.

5. Check the file back in.

REFERENCES
==========

  Q184956 Problems Deleting Files Under Internet Information Server

  Q138344 HOWTO: Set Up a Shadow Dir in Visual SourceSafe Administrator

Additional query words:

======================================================================
Keywords          : kbinterop kbInternet kbSSafe500bug kbSSafe600bug kbIIS kbGrpDSSSafe kbiis400bug 
Technology        : kbSSafeSearch kbiisSearch kbAudDeveloper kbiis400 kbSSafe600 kbSSafe500
Version           : WINDOWS:5.0,6.0; winnt:4.0
Issue type        : kbbug
Solution Type     : kbpending

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