The HcSendCacheHeaders property specifies whether the headers specified by HcCacheControlHeader and HcExpiresHeader are sent with each compressed response. If this property is set to true, Cache-Control and Expires headers are sent with all compressed responses. If this property is set to false, however, only the HTTP 1.1 Vary header is sent.
In general, the Cache-Control and Expires HTTP headers are included with compressed responses to prevent inappropriate caching of compressed files, especially by proxy servers and older browsers. If you choose to disable these headers, you should also set HcNoCompressionForProxies and HcNoCompressionForHttp10 to true.
Attribute Name
Value
ADSI/WMI Data Type
BOOL
ABO Data Type
DWORD_METADATA
Schema Default
TRUE
Internal Default
FALSE
Upper Bound
0
Lower Bound
Not specified
Internal ID
2220
Friendly ID
MD_HC_SEND_CACHE_HEADERS
Property Attributes
NO_ATTRIBUTES
User Type
IIS_MD_UT_SERVER
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
There are no flags for this property.
Client: Requires Windows XP Professional, Windows 2000 Professional, or Windows NT Workstation 4.0.
Server: Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server 4.0.
Product: IIS