The Windows Sockets WSAInstallServiceClass
function registers a service class schema within a name space. This schema
includes the class name, class id, and any name space specific information that
is common to all instances of the service, such as the SAP ID or object ID.
| LPWSASERVICECLASSINFO lpServiceClassInfo
[in] Service class to name space specific type mapping information. Multiple
mappings can be handled at one time.
See section Service Class Data Structures
for a description of pertinent data structures.
The return value is zero if the operation was successful. Otherwise, the value
SOCKET_ERROR is returned, and a specific error number may be retrieved by
||The calling routine does not have sufficient privileges to install the Service.
||Service class information has already been registered for this service class
ID. To modify service class info, first use WSARemoveServiceClass, and then re-install with updated class info data.
||The Windows Sockets 2 DLL has not been initialized. The application must first
call WSAStartup before calling any Windows Sockets functions.
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