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<TITLE>Int 67/AX=FFA5h
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Int 67/AX=FFA5h - Microsoft EMM386.EXE v4.20+ - INSTALLATION CHECK -
AX = FFA5h
Return: AX = 845Ah/84A5h if loaded
BX:CX - API entry point (see #03666)
Notes: this call is available even if EMM386 is not providing EMS
the returned AX is 845Ah inside of MSWindows, 84A5h under bare DOS
if no other program has hooked INT 67, an alternate installation
check is to test for the string
MICROSOFT EXPANDED MEMORY MANAGER 386 at offset 14h in the INT 67
handler's segment; the word immediately preceding this string
contains the offset of the API entry point
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<h2>Int 67/AX=FFA5h
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<h3><font color=#C00040>Microsoft EMM386.EXE v4.20+ - INSTALLATION CHECK</font></h3>
<PRE>
AX = FFA5h<br>
<p><b>Return:</b><br>AX = 845Ah/84A5h if loaded
BX:CX -> API entry point <a href="rb-7507.htm#Table3666" tppabs="http://www.ctyme.com/intr/rb-7507.htm#Table3666">(see #03666)</a>
</PRE>
<p><b>Notes:</b>
This call is available even if EMM386 is not providing EMS.
The returned AX is 845Ah inside of MSWindows, 84A5h under bare DOS.
If no other program has hooked INT 67, an alternate installation
check is to test for the string
"MICROSOFT EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
handler's segment; the word immediately preceding this string
contains the offset of the API entry point
<p><b>See Also:</b>
<a href="rb-7414.htm" tppabs="http://www.ctyme.com/intr/rb-7414.htm">AH=3Fh</a> - <a href="rb-7508.htm" tppabs="http://www.ctyme.com/intr/rb-7508.htm">AX=FFA5h/BX=4345h</a> - <a href="rb-2846.htm" tppabs="http://www.ctyme.com/intr/rb-2846.htm">INT 21/AX=4402h"EMM386.EXE"</a>
<PRE>
<p>
<a name=table3666></a>
(Table 03666)
Call EMM386.EXE API entry point with:.
AH = 00h get memory manager's status
<p><b>Return:</b><br>AH = status
<p><b>bit 0:</b><br>Not active (OFF)
<p><b>bit 1:</b><br>In "Auto" mode.
AH = 01h set memory manager's state
AL = new state (00h ON, 01h OFF, 02h AUTO).
AH = 02h Weitek coprocessor support
AL = subfunction
00h get Weitek support state
<p><b>Return:</b><br>AL = status
<p><b>bit 0:</b><br>Weitek coprocessor is present
<p><b>bit 1:</b><br>Weitek support is enabled
01h turn on Weitek support
02h turn off Weitek support
--- v4.20-4.41 only ---.
AH = 03h Windows support???
AL = subfunction (00h, 01h).
AH = 04h print copyright notice to standard output
(using INT 21/AH=09h).
AH = 05h print available report
(the one shown when running EMM386 from the DOS prompt)
</PRE>
<p><b>See Also:</b>
#01513 at INT 21/AX=4402h/SF=02h - #02617 at INT 2F/AX=12FFh/BX=0106h
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Memory Management</a>
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Int 67h</a>
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