HcNoCompressionForHttp10

The HcNoCompressionForHttp10 property disables compression for requests containing an HTTP 1.0 version number. HTTP 1.0, as described in RFC 1945, provides a minimal level of support for certain types of compression. However, some confusion exists around HTTP 1.0 compression, especially with regard to proxy servers. To minimize the chance of inappropriately returning a compressed file to a client that cannot decompress it, you can use this metabase property to disable compression in questionable scenarios.

Schema Attributes

Attribute Name	Value
ADSI/WMI Data Type	BOOL
ABO Data Type	DWORD_METADATA
Schema Default	TRUE
Internal Default	TRUE
Upper Bound	0
Lower Bound	Not specified
Internal ID	2217
Friendly ID	MD_HC_NO_COMPRESSION_FOR_HTTP_10
Property Attributes	NO_ATTRIBUTES
User Type	IIS_MD_UT_SERVER

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

Flags

There are no flags for this property.

Requirements

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

See Also