It's possible the macros you are executing have been recorded to your
personal macro workbook. Macro code, forms etc. are completely self
contained within the Excel file so there should be no obvious reason why the
macros have disappeared. Getting unexpected results from the macros on
another machine is a more common problem.



--

Regards,


Bill Lunney
www.billlunney.com

"Matteo" wrote in message
...
Hi,

I made a worksheet with some macros (in Excel 97) that
properly works on my PC (no matter the excel version I
use to open it), but when I send it by mail to a
customer, he can open it, but macros doesn't work on his
PC.

Before sending the file, I protected the macros with a
password.
He has a Excel 2000 installed, with a LOW level of
protection.
The message he got is something like: "The macro XXX does
not exist".
It seems like macros disappered on his worksheet, since
when he tries to open the Visual Basic Editor the project
appears empty.

How to explain this behaviour?
Are there some setting I can change in Excel or this is
depending on something "external" (ex. a firewall that
deletes all macros..)

thank you,

Matteo