HcExpiresHeader Metabase Property (IIS 6.0)
The HcExpiresHeader property specifies the content of the HTTP Expires header that is sent with all requested compressed files, along with the Cache-Control header discussed in HcCacheControlHeader Metabase Property.
The combination of HcExpiresHeader and HcCacheControlHeader ensures that older clients and proxy servers do not attempt to cache compressed files.
Neither the header specified by HcCacheControlHeader, nor the header specified by HcExpiresHeader, is sent with the response if the metabase property HcSendCacheHeaders Metabase Property is set to false.
The World Wide Web Publishing Service (WWW service) must be restarted before any changes to this property take effect.
You can configure this property at the following locations in the IIS metabase.
For general code examples, see Code Examples to Configure Metabase Properties.