INT 2F - AVATAR Serial Dispatcher - UNINSTALL IRQ4 HANDLER
AX = 1A63h
BX = 4156h ('AV')
CX = handle for IRQ routine returned by AX=1A43h
SeeAlso: AX=1A62h

See also: 2F1A43

2F1A63BX4156 - AVATAR Serial Dispatcher - UNINSTALL IRQ4 HANDLER