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CacheISAPI

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The CacheISAPI property indicates whether ISAPI extensions are cached in memory after first use. If the value of this property is set to true, ISAPI extensions, once loaded, remain in the cache until the server is stopped. If the value is set to false, extensions are unloaded from memory after the ISAPI extension is no longer in use.

ISAPI extensions are cached or not cached based on the value of this property at the time they were loaded into memory for use. Thus, if this property is changed after an extension has been loaded and cached, the change will have no effect on that extension until the Web server is restarted.

ms524516.alert_caution(en-us,VS.90).gifImportant Note:

There are severe performance implications to setting the value of this property to false. Also, some extensions cannot work properly when this property is set to false.

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

6034

Friendly ID

MD_CACHE_EXTENSIONS

Property Attributes

INHERIT

User Type

IIS_MD_UT_FILE

Configurable Locations

You can configure this property at the following locations in the IIS metabase.

Metabase Path

IIS Admin Object Type

/LM/W3SVC

IIsWebService

/LM/W3SVC/n

IIsWebServer

/LM/W3SVC/n/ROOT/physical_directory_name

/LM/W3SVC/n/virtual_directory_name/physical_directory_name

IIsWebDirectory

/LM/W3SVC/n/ROOT

/LM/W3SVC/n/ROOT/virtual_directory_name

IIsWebVirtualDir

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