I have some code that creates a new worksheet from a name provided by a user.
The code checks the user input for invalid characters before creating the
name, eliminating : @ \ / ? * [ ]. The code worked fine running English
Excel but when I ran using Japanese Excel I had a problem.

In the Japanese environment the user provided a name that contained the yen
(ï¿¥) character. My code checked for \ which is the directory path separator
in Japanese and displays as the yen symbol. But since the user's name had
the actual yen character my code failed to create a valid worksheet name.

I could modify my code to explicitly check for the yen character and it
would fix the problem. However, yen character is valid in English Excel so I
don't want to replace it in that environment. I also can't just check thread
locale or regional settings or something similar as English Excel could be
running on a Japanese system.

My question then, is it possible to programatically determine at runtime
which characters are invalid in worksheet names? For example, is there an
Excel call that would return a list of invalid characters which I could then
removed from any proposed worksheet names?

- Drew