I usually only receive this message after Micro$oft updates and is
remedied by reselecting Tbird as the default email client XP's
internet options. This last time I had to reinstall Tbird and all was
right again.

Good luck.

-Noel

On Jun 24, 11:07*pm, Barry Angus wrote:
> Hi all
> I used to be able to right click on a file and send it via email,
> however, I know get the following error message: