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HcloBufferSize Metabase Property

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Applies To: Windows Server 2003, Windows Server 2003 with SP1

The HcIoBufferSize property specifies the size of the buffer (in bytes) that IIS uses to read uncompressed files. A larger buffer yields slightly faster compression performance, but at the cost of additional memory usage.

HcIoBufferSize is used by IIS only if HcDoOnDemandCompression Metabase Property is set to true. The maximum allowable value is 1,048,576 bytes (1 MB).

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

DWORD

WMI Data Type

SINT32

ADSI Data Type

DWORD

ABO Data Type

DWORD

ABO Metabase Identifier

MD_HC_IO_BUFFER_SIZE

Attributes

NO_ATTRIBUTES

Default Value

8192

MetaFlagsEx

CACHE_PROPERTY_MODIFIED

User Type

IIS_MD_UT_SERVER

ID

2222

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.