Description:
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Our Windows 2003 is happily running PHP 5, Apache 2 and Fastcgi configured for 100 php-cgi.exe processes.
I am trying to add APC for better performance.

From this site: http://pecl4win.php.net/ext.php/php_apc.dll
I downloaded APC for PHP 5.2.1 and upgraded my PHP to 5.2.1. The behavior I'm getting is that any requests for PHP files submitted to the Apache server get stuck and there is no output. If I turn off loading php_apc.dll in the php.ini, it works fine. I got the same problem when using PHP 5.1.6 and the applicable php_apc.dll compiled for that version of PHP.
As an experiment, with PHP 5.1.6, I ran the same configuration without fastcgi, and APC worked and exhibited a significant performance boost.
So the bug is that on Windows 2003 running Apache2, APC and Fastcgi appear to be incompatible. Either one works, but not both. This is a shame because PHP is really unusable on Windows without Fastcgi (too unstable), as well as being very slow to run without APC.


Reproduce code:
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In my tests I was using the following config in php.ini
extension=php_apc.dll
apc.enabled=1;
apc.shm_segments=1;
apc.shm_size=30; 
apc.optimization=0;
apc.num_files_hint=5000;
apc.ttl=3600;
apc.gc_ttl=3600;
apc.cache_by_default=1;
; apc.filters
;apc.mmap_file_mask=/tmp/apc.XXXXXX
apc.slam_defense=0;
apc.file_update_protection=2;
apc.enable_cli=0;
apc.max_file_size=1M;
apc.stat=1; 

and the following in Apache's httpd.conf:

FastCgiServer "c:/program files/apache group/apache2/htdocs/phpc/php-cgi.exe" -processes 100 -idle-timeout 600 
AddHandler php-fastcgi .php
Action php-fastcgi "/phpc/php-cgi.exe"


My tests were still unsuccessful also with this line enabled:
apc.mmap_file_mask = /tmp/apc.XXXXXX


My tests were still unsuccessful with fastcgi configured to run just one php process.

Expected result:
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Expected php to work.

Actual result:
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No output, as if php is stuck. No evidence in Apache's error log or anywhere else, for the problem.