Category: <b>serial I/O</b>
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<pre><b>INT 2F - AVATAR Serial Dispatcher - UNINSTALL IRQ4 HANDLER</b>

	AX = 1A63h
	BX = 4156h ('AV')
	CX = handle for IRQ routine returned by AX=1A43h
SeeAlso: AX=1A43h,AX=1A62h
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