Windows

Short of a registry edit,it can't be done.

Good luck and tell me how you go.

TweakUI from Microsoft will allow you to remove items from the context menu, but not edit.

Why not try the "NBG Clean Registry" editor?
Get it at:
http://dialupprof.newmail.ru/nbgcleanr.htm

Let's see it this can help you.
Identify the windows\sendTo Subdirectory
You can copy your favorites editting and tools app here (like WinZip, HexEdit, Notepad, WordPad, etc) and they now appears with a right click on the explorer.

It?s quite difficult to rename lots of files in W9x and NT, but if you have aan app that, for exmple rename automatically the file, let?s said, using a sequential number, you can place your app here, highlight the file to be rename, right click, select your app and the file will be renamed.

I spend a lot of time renaming mp3's files downloaded from the internet when the belong to the same album!!!
So I do This:
.TXT file where I put "Author Name" - "seqNumber" - "Song Name".mp3
When I right click overa file, a box appears like This "Emerson Lake & Palmer - 03 - <cursor here prompt for name>.mp3
The number (03) is automatic based on the files that exists.

Thank's for rating my time!

I'm DEADLY SURE that you HAVE NOT downloaded the "NBG Clean Registry" and HAVE NOT tested its manual registry editor.
HOWEVER I'm still in good mood.
You can also check the following:

ContextEdit:
http://www.zdnet.com/downloads/stories/info/0,,001EG5,.html
ftp://zdftp.zdnet.com/pub/private/sWlIB/utilities/system_utilities/cnxtedit.zip

ContextMenu Editor 1.2:
http://www.cs-developments.de.vu/
http://www.cs84.dusnet.de/CsDev/engl/context/contextedit_v12.exe

Good luck with menu editing,
Zlatin Zlatev,
Software Engineer and Mentor Programmer
JEI-Bulgaria