)
Values for PC-IPC error code:
 00h	no error
 01h	invalid command or parameter
 02h	only process 0 can install/reset IPC
 03h	process can not install/reset IPC
 04h	IPC is not enabled
 05h	process can not disable IPC
 06h	invalid destination process ID
 07h	invalid sending process ID
 08h	invalid data destination
 09h	no more process IDs available
 0Ah	can not relinquish that process ID
 0Bh	message space is full
 0Ch	IPC is not installed