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我安装了所有的，但是我运行testing后，我得到这个错误：
HTTP Error 500.0 - Internal Server Error C:\php\php-cgi.exe - The FastCGI process exited unexpectedly Detailed Error Information Module FastCgiModule Notification ExecuteRequestHandler Handler PHP Error Code 0xc0000005 Requested URL http:// localhost:80/ test.php Physical Path C:\inetpub\wwwroot\test.php Logon Method Anonymous Logon User Anonymous Most likely causes: * IIS received the request; however, an internal error occurred during the processing of the request. The root cause of this error depends on which module handles the request and what was happening in the worker process when this error occurred. * IIS was not able to access the web.config file for the Web site or application. This can occur if the NTFS permissions are set incorrectly. * IIS was not able to process configuration for the Web site or application. * The authenticated user does not have permission to use this DLL. * The request is mapped to a managed handler but the .NET Extensibility Feature is not installed. Things you can try: * Ensure that the NTFS permissions for the web.config file are correct and allow access to the Web server's machine account. * Check the event logs to see if any additional information was logged. * Verify the permissions for the DLL. * Install the .NET Extensibility feature if the request is mapped to a managed handler. * Create a tracing rule to track failed requests for this HTTP status code. For more information about creating a tracing rule for failed requests, click here. Links and More Information This error means that there was a problem while processing the request. The request was received by the Web server, but during processing a fatal error occurred, causing the 500 error. View more information » Microsoft Knowledge Base Articles: * 294807 在php.net网站的精美打印中，我注意到：
Visual C++ Redistributable for Visual Studio 2012 is required for PHP 5.5
我从命令提示符运行这个命令find问题
C:\php\php-cgi.exe C:\inetpub\wwwroot\test.php
test.php是我用以下文本创build的文件：
<?php phpinfo(); ?>
这看起来像您的权限有问题。
您应该检查您的php-cgi.exe运行的用户（CTRL + SHIFT + END并查找进程），并查找该用户是否具有对PHP安装文件夹（如C:\PHP ）的读取权限网页根。
后者可能还需要一些写权限。