IIS下php多版本共存时指定当前项目使用的版本

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <handlers>
            <remove name="FastCgiModule" />
            <remove name="php5.4" />
            <add name="aspnet" path="*" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" preCondition="classicMode,runtimeVersionv4.0,bitness32" />
            <add name="php5.4" path="*.php" verb="*" modules="FastCgiModule" scriptProcessor="C:\BtSoft\WebSoft\php\5.4\php-cgi.exe" resourceType="Unspecified" requireAccess="Script" /> //IIS中有多个版本的php时，这里表示当前项目使用哪一个版本的php
        </handlers>
        <httpErrors errorMode="DetailedLocalOnly" />
        <directoryBrowse enabled="false" />
        <validation validateIntegratedModeConfiguration="false" />
        <modules runAllManagedModulesForAllRequests="true" />
        <rewrite>
             <rules>
             <rule name="OrgPage" stopProcessing="true">
             <match url="^(.*)$" />
             <conditions logicalGrouping="MatchAll">
             <add input="{HTTP_HOST}" pattern="^(.*)$" />
             <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
             <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
             </conditions>
             <action type="Rewrite" url="index.php/{R:1}" />
             </rule>
             </rules>
        </rewrite>
    </system.webServer>
</configuration>