| hslp | The language specific SLPHandle that was passed in to the SLPFindSrvTypes() function. | 
| srvtypes | Pointer to a comma separated list of service types. See Syntax for more information on service type syntax. | 
| errcode | An error code indicating if an error occurred during the operation. The callback should check this error code before processing the parameters. | 
| cookie | The same cookie that was passed as a parameter to the SLPFindSrvTypes() call | 
| OpenSLP 0.6.0 | SLPSrvTyperCallback functions are not called because SLPFindSrvTypes() is not implemented |