Knowledge base for Windows Webmasters, Administrators and Web hosting compagnies, with a special attention to WAMP (Windows Apache MySQL PHP). Most articles/tips are currently in use on web hosting servers. This is an open site, please participate or even join us.
New:
eAccelerator 0961 for PHP 5.3.3
eAccelerator 0961 for PHP 5.2.14
eAccelerator 0.9.5.1 for PHP 4.4.9

APC binaries for PHP 5.x (windows builds)

Updated: APC download using latest code (3.0.12p2).

eAccelerator binaries for PHP 5.x (windows builds)

For the Windows eAccelerator for php 5.3+ visit our new page at:eAccelerator binaries for PHP 5.3+.

Updated: eAccelerator download using latest code (0.9.5.3 with PHP 5.2.9).

Please find following the compiled binaries of eAccelerator for Windows using Microsoft VC++ 6. For PHP 4 versions: eAccelerator binaries for PHP 4.x.
If you need a version not offered here, let us know (post comment).

APC binaries for PHP 4.x (windows builds)

Updated: APC download using latest code (3.0.11).

Please find following the compiled binaries of APC for Windows using Microsoft VC++ 6. For PHP 5 versions (following link should be updated soon): PHP APC binaries for PHP 5.x.
If you need a version not offered here, let us know (post comment).

eAccelerator

We have been using this PHP accelerator (0.9.X), on multiple servers, for a long time. It's used on some high traffic sites without any problem.

Install:
a) Download a copy of eAccelerator that is compatible with your version of PHP.
This can be an issue with eAccelerator. Sometimes it can take a little time before the Windows binaries are available for the most recent version of PHP.

Setting up PHP as Fast CGI (FCGI) under Apache

1) Download the Apache mod_fcgi module: http://fastcgi.coremail.cn/

2) Configuration in your Apache httpd.conf:
a) LoadModule fcgid_module modules/mod_fcgid.so

b.1) <Directory "C:/Apache2/htdocs/php/">
    SetHandler fcgid-script
    Options execCGI

IIS Optimizing logging for Awstats & reduce logs size by over 50%!

High traffic sites can easily get daily logs over 100MB. It can be very beneficial to log only the information we actually use. We will require the minimum logging for decent Awstats reports. We will copy the recommended Apache LogFormat:
"%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %V"

For more details on the meaning of these values see: Apache Preferred Awstats Custom Log Formats.

eAccelerator binaries for PHP 5.3+ (windows builds) Part 2

For the Windows eAccelerator for php 5.x (pre PHP 5.3) visit :eAccelerator binaries for PHP 5.x (pre 5.3).

eAccelerator download using latest code (0.9.6.1 with PHP 5.3.3).