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X-Hacker.org- DOS 5.0 Ref. - <b>int 2fh / 4b02h detect switcher dos 5.0+</b>
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Int 2Fh / 4B02h Detect Switcher DOS 5.0+
Determines whether a task switcher is loaded. Client programs
(such as a session manager) that need to prevent or control the
interruptions causes by task switching should call this function
during initialization.
Entry AX = 4B02h
Return AX = 00h
ES:DI = Address of service-function handler
or
ES:DI = 0000:0000h
[...]
See Also: SwVersion
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