Several users asked me about how to enable the line In function in vista mode.
not like the old WinXP and old machines where we usually have 3 x 1/8 jack (Mic, Line iN and audio Out), some later version laptop has actually combine both the Mic and Line In into one jack.
some people might confuse because in the older days, they used to hear they own voice directly from speakers once they connect their mic...
but not in the Vista mode, because Microsoft Vista has a bug ,
thus, same things happens for those users who wish to line In their Ipod, Zen or other audio device to the laptop and hears nothing...
this is because the direct speaker out was disable.


and thanks to our freelance debuggers, there's a solution for it.

Well, I found the following (below) created the Settings/ Filter/ SpeakerHp keys, and entered the new binary variable 'EnableInputMonitor' w/ a value of '01', thing is, when I restart, and reopen registry editor, it has taken all of that stuff out! and no, the microphone still doesn't show in the speakers/ headphones properties levels area. This apparently has worked for some people though.

Long and short of it is:
1) Open regedit (Start->Run, type regedit)
2) Navigate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96C-E325-11CE-BFC1-08002BE1031­8}\0000\Settings\filter\SpeakerHp\
3) Create a new Binary Value
4) Give it the name EnableInputMonitor
5) Set it's value to 01
6) Restart your machine
7) Open your Playback Devices (right click on volume control icon in system tray, select Playback Devices)
8) Open the Speakers/Headphones
9) Go to the levels tab
10) Unmute the input monitor

There you go, you can now hear your microphone on your speakers.

this is what you see in step 10, enable the input monitor.



Hope this help!!

anything just Pm me.
i'm ready to help you all.