HSE_VERSION_INFO - allows an ISAPI extension to describe itself to the web server.
typedef struct { DWORD dwExtensionVersion; CHAR lpszExtensionDesc[HSE_MAX_EXT_DLL_NAME_LEN]; } BHSE_VERSION_INFO;
When an ISAPI-enabled server loads an extension library it calls GetExtensionVersion to initialize the library in preparation for servicing requests, passing it a pointer to a HSE_VERSION_INFO structure. The extension library fills in dwExtensionVersion to indicate the version of the ISAPI interface against which it was compiled; it fills in lpszExtensionDesc with a string describing the extension.
isapi(7),
GetExtensionVersion(3)
$ZEUSHOME/web/include/httpext.h $ZEUSHOME/web/include/wintypes.h $ZEUSHOME/webadmin/docroot/docs/modules/isapi/*.html
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