CacheISAPI
CacheISAPI indicates whether ISAPI extensions are cached in memory after first use. If the value of this property is set totrue, ISAPI extensions, once loaded,remain in the cache until the server is stopped. If the value is set tofalse, extensions are unloaded from memory once the ISAPI extensionis 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 re-started.
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Important There aresevere performance implications to setting the value of this property to false. Also, some extensions cannot work properly with this property set to false.
| Attribute Name | Attribute Value |
|---|---|
| XML Data Type | Boolean |
| WMI Data Type |
Boolean
|
| ADSI Data Type | Boolean |
| ABO Data Type | Boolean |
| ABO Metabase identifier |
MD_CACHE_EXTENSIONS
|
| Attributes | INHERIT |
| Default Value | true |
| MetaFlagsEx | CACHE_PROPERTY_MODIFIED |
| User Type | IIS_MD_UT_FILE |
| StartingNumber | Not applicable |
| EndingNumber | 0 |
| ID | 6034 |
Configurable Locations
You can configure this property at the following locations in the IIS metabase.
| Metabase Path | IIS Admin Object Type |
|---|---|
| /LM/W3SVC/n/ROOT /LM/W3SVC/n/ROOT/virtual_directory_name |
IIsWebVirtualDir |
| /LM/W3SVC/n | IIsWebServer |
| /LM/W3SVC | IIsWebService |
| /LM/W3SVC/n/ROOT/physical_directory_name /LM/W3SVC/n/virtual_directory_name/physical_directory_name |
IIsWebDirectory |
Code Example
For general code examples, please see Code Examples to Configure Metabase Properties