INT 16 - WATCH.COM v2.x-v3.0 - INSTALLATION CHECK                               
	AX = 7761h ('wa')
Return: AX = 5741h ('WA') if installed
Note:	WATCH.COM is part of the "TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination." package by Kim Kokkonen
SeeAlso: INT 21/AX=7761h