HcExpiresHeader Metabase Property
Applies To: Windows Server 2003, Windows Server 2003 with SP1
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.
| Attribute Name | Attribute Value |
|---|---|
XML Data Type |
String |
WMI Data Type |
String |
ADSI Data Type |
String |
ABO Data Type |
String |
ABO Metabase Identifier |
MD_HC_EXPIRES_HEADER |
Attributes |
NO_ATTRIBUTES |
Default Value |
null |
MetaFlagsEx |
CACHE_PROPERTY_MODIFIED |
User Type |
IIS_MD_UT_SERVER |
ID |
2212 |
Configurable Locations
You can configure this property at the following locations in the IIS metabase.
| Metabase Path | IIS Admin Object Type |
|---|---|
/LM/W3SVC/Filters/Compression/Parameters |
IIsCompressionSchemes |
Code Example
For general code examples, see Code Examples to Configure Metabase Properties.