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AX = A900h CF set
Return:
CF clear if resident AX = 97FFh CF set if not present
Notes: METZTSR.COM prevents METZ applications (such as the MAGIC screen saver) inactivity timeout while running a DOSapp under MS Windows.. The default multiplex number is A9h, but may be set to any value from 80h to FFh with a commandline switch
Category: Resident Utilities - Int 2Fh - M
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