If you wish to do it yourself here are the instructions.
**Note** I am in no way responsible for anything that happens to your computer after hacking the dll file. Use at your own risk.
Download Resource Hacker from
here
You will need to unzip the folder. If you dont have a program to do this then download WinZip from here
Next you want to open the msglang.dll file for hacking. (Usually located at C:\Program Files\MSN Messenger\msglang.dll)
Click on the + beside the String Table
Click on the + beside the number 6
Click on the flower type icon. (Kind of looks like the ICQ logo)
Next Highlight the line 84 it will read the following.
code:
84, "%1 is writing a message."
You want to delete that line then click on the Complie Script button along the top. Then save the dll file. (You may need to close MSN Messenger before saving the dll.
After saving restart MSN Messenger and ta da no "<user> is writing a message"