Yes, I have.  Is there a particular problem you are having with it?

As an alternative, if you want http compression and dynamic page caching then check out the pageBlaster.

The pageBlaster config does not go in the web.config file, all you need is the httpModules entry:

<add name="PageBlaster" type="Snapsis.HttpModules.PageBlaster.PageBlasterModule, Snapsis.HttpModules.PageBlaster" />

That is all you need in web.config, the Snapsis.pageBlaster.Config file is a seperate file that can be modified so that your app does not have to restart when changes are made.

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For Blowery Compression, it has 3 sections that you add to the web.config file (the section definition, the httpmodule entry and the blowery Config section:

You are probably missing this part at the top of your web.config:

    <sectionGroup name="blowery.web">
      <section name="httpCompress" type="blowery.Web.HttpCompress.SectionHandler, blowery.Web.HttpCompress"/>
    </sectionGroup>

Then the httpModule:

<add name="CompressionModule" type="blowery.Web.HttpCompress.HttpModule, blowery.web.HttpCompress"/>

And finally the Config section:

<blowery.web>
       <httpCompress preferredAlgorithm="gzip" compressionLevel="high">
          <excludedMimeTypes>
             <add type="image/png" />
             <add type="image/jpeg" />
             <add type="image/gif" />
             <add type="application/zip" />
             <add type="application/x-zip-compressed" />
             <add type="application/x-gzip-compressed" />
             <add type="application/x-compressed" />
             <add type="application/octet-stream" />
             <add type="application/pdf" />
          </excludedMimeTypes>
          <excludedPaths>
             <add path="ebresource.axd"/>
          </excludedPaths>
       </httpCompress>
    </blowery.web>