Category: <b>DOS-based task switchers/multitaskers</b>
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<pre><b>INT 21 - DoubleDOS - ADD CHARACTER TO KEYBOARD BUFFER OF CURRENT JOB</b>

	AH = F3h
	AL = character
Return: AL = 00h successful
	     01h buffer full (128 characters)
SeeAlso: AH=E3h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
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