MSN Com Port Flash LED

Click on picture for bigger picture. In this tutorial, I will be showing how to make a LED flasher whenever a MSN conversation is open. The program that will be used is called MSN Com Port Flash. Click here to get it. To make the LED com cable, we will need the following:


  1. 1.5 volt LED
  2. a com port table (female to female)
  3. Electrical Tape (any tipe of tape will do)
  4. MSN Com Port Flash Program

Befor you Start:

Install the MSN Com Port Flash program befor you start. You may have to download this file and paste it into you C:\windows\system\ after you install the program.
Step 1:

First lets figure out where the LED is going to be on the com port cable. We will be using pins 3 & 4.

Step 2:

On your LED, one of the wires should be longer than the other. Put the longer wire into pin 3 and the shorter one into pin 4.


Step 4:

Wrap some tape around the end of the plug and make sure the LED stays in place.


Step 5:

Now, plug the other end of the cable into the computers com port. IF YOU SEE SPARKS OR YOUR COMPUTER SHUTS DOWN INSTANTLY UNPLUG THE LED AND START THE COMPUTER! Go over the wiring again before plugging in back in. If nothing happens, then continue on to the next step.

Step 6:

Now we are going to run a test program. Go to Start–>All Programs–>MSN Com Port Flash then open Test COM Port Pin Output. Click on the button to tern on and off the LED. Should look like this: (When it’s on)


Step 7:

Now close the test program. Next go to Start–>All Programs–>MSN Com Port Flash then open MSN Com Port Flash. Change the flash rate and what not to your desired settings. I also recommend putting it on the side of your monitor or top I used clear tape to tape up to myn. Thats it, all done. If there is any problems please contact me at

Thanks to SmashD for the great program!