# Numerical error summary

The following table numerically lists MSPP API errors:

Hex | Decimal | Error name
0x001B0001 | 1769473 | MSPERR_INVALID_CONNECTION
0x001B0002 | 1769474 | MSPERR_INTERNAL_HANDLE
0x001B0003 | 1769475 | MSPERR_CANNOT_OPEN_SERVICE_COMPONENT
0x001B0004 | 1769476 | MSPERR_INVALID_HANDLE
0x001B0005 | 1769477 | MSPERR_CHANNEL_NOT_DEFINED
0x001B0006 | 1769478 | MSPERR_CHANNEL_NOT_CONNECTED
0x001B0007 | 1769479 | MSPERR_ENDPOINT_NOT_ALLOCATED
0x001B0008 | 1769480 | MSPERR_DRIVER_COMMAND_FAILED
0x001B0009 | 1769481 | MSPERR_UNKNOWN_FILTER_OBJECT
0x001B000A | 1769482 | MSPERR_SENDCOMMAND_FAILED
0x001B000B | 1769483 | MSPERR_SENDQUERY_FAILED
0x001B000C | 1769484 | MSPERR_ENDPOINT_BUSY
0x001B000D | 1769485 | MSPERR_FILTER_BUSY