http://www.iis.net/extensions/WinCacheForPHP 

This is an PHP accelerator used to increase the performance of the PHP applications running on windows7 and windows 2008 R2 server. It is an extension available in the IIS 7.5 and loaded by the PHP Engine. Major advantage this functions without any code change.

Features

• PHP 5.2 and PHP 5.3 support
• Configurable file cache
• Configurable PHP opcode cache
• Relative file path cache
• PHP functions to obtain information about the cache status

Thanks
E.Ravi