您想确保在 * / * MIME类型添加类型之后。另外，还要确保您已使用服务器管理器（或OptionalFeatures.exe）安装动态的COM pression模块

You want to make sure that the */* mime type is after the types you add. Also make sure that you have installed Dynamic Compression Module using Server Manager (or OptionalFeatures.exe)

这是我使用，以确保一个良好的COM pression完成的命令行。 （但要确保你确实已经安装了动态和静态的COM pression模块）：

This is the command lines I use to make sure a good compression is done. (but make sure you actually have installed Dynamic and Static Compression modules):

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/serverRuntime /frequentHitThreshold:"1"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/urlCompression /doDynamicCompression:"True"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/json']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/json',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/json; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/json; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/x-javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/x-javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='application/x-javascript; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='application/x-javascript; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"dynamicTypes.[mimeType='*/*']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"dynamicTypes.[mimeType='*/*',enabled='False']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/x-javascript']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/x-javascript',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='application/x-javascript; charset=utf-8']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='application/x-javascript; charset=utf-8',enabled='True']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-"staticTypes.[mimeType='*/*']"
call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+"staticTypes.[mimeType='*/*',enabled='False']"

call %windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /noCompressionForHttp10:"False" /noCompressionForProxies:"False" /minFileSizeForComp:"2700"

运行此您％WINDIR后％\ SYSTEM32 \ INETSRV \设置\对ApplicationHost.config应该是这个样子（注意， / 的是在底部）：

<httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files" minFileSizeForComp="2700" noCompressionForHttp10="false" noCompressionForProxies="false">
    <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" />
    <dynamicTypes>
        <add mimeType="text/*" enabled="true" />
        <add mimeType="message/*" enabled="true" />
        <add mimeType="application/json" enabled="true" />
        <add mimeType="application/json; charset=utf-8" enabled="true" />
        <add mimeType="application/javascript" enabled="true" />
        <add mimeType="application/x-javascript" enabled="true" />
        <add mimeType="application/x-javascript; charset=utf-8" enabled="true" />
        <add mimeType="*/*" enabled="false" />
    </dynamicTypes>
    <staticTypes>
        <add mimeType="text/*" enabled="true" />
        <add mimeType="message/*" enabled="true" />
        <add mimeType="application/atom+xml" enabled="true" />
        <add mimeType="application/xaml+xml" enabled="true" />
        <add mimeType="application/javascript" enabled="true" />
        <add mimeType="application/x-javascript" enabled="true" />
        <add mimeType="application/x-javascript; charset=utf-8" enabled="true" />
        <add mimeType="*/*" enabled="false" />
    </staticTypes>
</httpCompression>