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<TITLE>Int 21/AX=4BEEh
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<META NAME="Description" CONTENT="
Int 21/AX=4BEEh - F-DRIVER.SYS v1.14+ - GRAB INT 21 -
AX = 4BEEh
Return: AX = status
1234h grab was successful
2345h failed (INT 21 grabbed previously)
Program: F-DRIVER.SYS is part of the shareware F-PROT virus/trojan protection
package by Fridrik Skulason
Note: when called the first time, this function moves the INT 21 monitoring
code from its original location in the INT 21 chain to be the first
thing called by INT 21. This is the mechanism used by F-NET.
SeeAlso: INT 2F/AX=4653h/CX=0002h,INT 2F/AX=4653h/CX=0007h
">
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<h2>Int 21/AX=4BEEh
</h2>
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<h3><font color=#C00040>F-DRIVER.SYS v1.14+ - GRAB INT 21</font></h3>
<PRE>
AX = 4BEEh<br>
<p><b>Return:</b><br>AX = status
1234h grab was successful
2345h failed (INT 21 grabbed previously)
</PRE>
<p><b>Program:</b>
F-DRIVER.SYS is part of the shareware F-PROT virus/trojan protection
package by Fridrik Skulason
<p><b>Note:</b>
When called the first time, this function moves the INT 21 monitoring
code from its original location in the INT 21 chain to be the first
thing called by INT 21. This is the mechanism used by F-NET.
<p><b>See Also:</b>
<a href="rb-4793.htm" tppabs="http://www.ctyme.com/intr/rb-4793.htm">INT 2F/AX=4653h/CX=0002h</a> - <a href="rb-4797.htm" tppabs="http://www.ctyme.com/intr/rb-4797.htm">INT 2F/AX=4653h/CX=0007h</a>
<p>
<b>Category: <a href="cat-047.htm" tppabs="http://www.ctyme.com/intr/cat-047.htm">
Virus/Antivirus</a>
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
Int 21h</a>
- <a href="alpha-f.htm" tppabs="http://www.ctyme.com/intr/alpha-f.htm">
F</a>
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