)
Values for Econet return code:
 0000h	successful
 0001h	bad command in command block
 0002h	no handles left
 0003h	bad handle
 0004h	bad argument in command
 0005h	buffer too small
 0006h	kill condition failed
 0007h	control block in use
 007Fh	command aborted
 01xxh	retryable board error XXh
 02xxh	fatal board error XXh
 0300h	invalid subfunction number in AL
 0301h	timeout
 03xxh	other driver errors
SeeAlso: #03036