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Bug #21012 HTTP Filter DLL C:\PHP\php4ts.dll failed to load
Submitted: 2002-12-14 11:28 UTC Modified: 2002-12-14 12:14 UTC
From: raptor at the0rem dot net Assigned:
Status: Not a bug Package: IIS related
PHP Version: 4.2.3 OS: Windows 2000 SP3
Private report: No CVE-ID: None
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 [2002-12-14 11:28 UTC] raptor at the0rem dot net
Creating new report since Bug #10725 has been closed.

I have installed PHP on my Win2kAS IIS 5.0 server, and added an ISAPI filter for php4ts.dll, however whenever IIS is started or restarted, the following Event appears in the Systen Log:

Event Type:	Error
Event Source:	W3SVC
Event Category:	None
Event ID:	14
Date:		12/14/2002
Time:		9:45:39 AM
User:		N/A
Computer:	THE0REM-1
The HTTP Filter DLL C:\PHP\php4ts.dll failed to load.  The data is the error. 
For additional information specific to this message please visit the Microsoft Online Support site located at: 
0000: 7f 00 00 00               ...    

IUSR_THE0REM-1 has read/exec permissions on the PHP directory (including the DLL).  Auditing this directory for failed accesses does not indicate any kind of user access or permissions problems.

I would much rather be using the ISAPI filter as opposed to using CGI via php.exe, but have not been able to get it to work using any release of PHP 4, not using any Win2k Service Pack level.

I have searched all over for a resolution to this problem, however have only found more reports of it from a number of other users with no resolutions.


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 [2002-12-14 12:14 UTC]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at and the instructions on how to report
a bug at

The isapi filter dll, is not php4ts.dll. It\'s php4isapi.dll.
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