: Open Notepad (Windows) or any basic text editor.

: Open the RAR file in WinRAR, click the Comment button on the top toolbar, enter your text, and click OK . Add NOTES to Your WinRAR Files in SECONDS!

Note : Ensure there are no extra spaces or line breaks at the beginning or end of the text. : Go to File > Save As . Set the "Save as type" to All Files (*.*) . Name the file exactly rarreg.key .

: In the WinRAR "Archive name and parameters" window, go to the Comment tab and type your text directly or load it from a text file.