How to enable HTTP Compression?

Hi all,

I'm trying to enable HTTP Compression at the web.config level but can't get my CSS or JS file compressed.

I've added this sample configuration found at on the IIS web site:

Code:

<httpCompression
  directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files">
<scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" />
<dynamicTypes>
  <add mimeType="text/css" enabled="true" />
  <add mimeType="application/x-javascript" enabled="true" />
</dynamicTypes>
<staticTypes>
  <add mimeType="text/css" enabled="true" />
  <add mimeType="application/x-javascript" enabled="true" />
</staticTypes>
</httpCompression>

But this seems to not work. Any tips?

Thanks a lot in advance,
Fabian