以下轉載自網路上的解決方式
1. unzip the zip file;
2. use php4apache2.dll to replace the c:\php\php4apache2.dll;
3. Copy httpd.exe.manifest into $Apache install document\Apache2.2\bin;
4. If you didn't install the .NET framework 2, please run the vcredist_x86.exe..
5. restart your Apache2.2