I send a person an Excel 2000 file containing macros and a digital signature.
When He attempts to open the file in Excel 2003 this is what he sees:
Run-time error '1004':

The password you supplied is not correct. Verify that the CAPS LOCK key
is off and be sure to use the correct capitalization.

Continue(grayed) | End | Debug | Help
Security level is set to low and he is not presented with any dialogue box
to enetr a passwrod so how do we overcome this problem?
Your advice would be most appreciated.