Follow the given steps to record your voice in windows XP:

To use this feature, you will need to be logged into your computer with administrative rights.

To start recording process, first make sure you have attached a microphone
to your computer.



1

First click on Start button> All programs> Accessories> click Entertainment and then click on Sound Recorder option

2

Now a small "Sound - Sound Recorder" will appear, go to File menu and click on New to start a new file for recording.
Click on Record button to start recording process and start talking then click on Stop button to stop the recording.
3

Now again click on File menu to save this file with .wav extension to a folder of your choice
Now send this voice file as an attachment via e-mail message to your friends.