Category: <b>DOS-based task switchers/multitaskers</b>
<br>Flags: callout or callback (usually hooked rather than called)<p>
<pre><b>INT 2F - DOS 5+ TASK SWITCHER - IDENTIFY INSTANCE DATA</b>

	AX = 4B05h
	ES:BX = 0000h:0000h
	CX:DX -&gt; task switcher entry point (see <a href=../../it/19/28.html>#02819</a>)
Return: ES:BX -&gt; startup info structure (see <a href=../../it/22/28.html>#02822</a>) or 0000h:0000h
Notes:	called by task switcher
	clients with instance data should hook this call, pass it through to
	  the previous handler with unchanged registers using a simulated
	  interrupt.  On return, the client should create a startup info
	  structure (see <a href=../../it/22/28.html>#02822</a>), store the returned ES:BX in the "next"
	  field, and return the address of the created structure in ES:BX
	all MS-DOS function calls are available from within this call
	this function is supported by Novell DOS 7 DOSKEY, with structure v3.00
SeeAlso: AX=1605h,AX=160Bh,AX=4B02h

</pre>