Signature Will Be Discarded

[MT DOJ Help Desk]

Excel 2000
Windows XP

We just recently upgraded our computers to Windows XP and Office 2000. I
had some macros that were written in Excel 97. I opened the file tonight
and everything seemed to be fine. But when I tried to copy a sheet in the
workbook, I got the following error message:

"You have modified a signed project. You do not have the right key to sign
this project. The signature will be discarded."

This is the first time since we upgraded that I have opened this workbook.
I signed the project again using the certificate that I created after we
upgraded. After that, I was unable to reproduce the problem, and things
seem to be working now.

What would have caused this problem? Was it caused by the outdated
certificate, or is there something else that I need to do in order to make
sure that we don't get this error in the future?

-- Tom

MT DOJ Help Desk

Making the world a safer place.

 

[Wei-Dong XU [MSFT]]

Hi Tom,

Could you always reproduce this issue? I'd suggest you can sign one another workbook in excel 97 and then test this in Excel2000 again. If not,
perhaps your origianl workbook is damaged. If so, it will be appreciated you tell your detailed scenario information and mail the excel workbook to me.
I will test this for you. My email address is: (e-mail address removed)(please remove the "online" which is used to avoid spam). If your workbook
contains some important data, please build one test workbook signed in Excel 97 and then mail it to me. I will test this in Excel 200 with one
environment according to your scenario then.

Best Regards,
Wei-Dong Xu
Microsoft Product Support Services
Get Secure! - www.microsoft.com/security
This posting is provided "AS IS" with no warranties, and confers no rights.

 

[Sipoftea]

We are experiencing the same issue with some files that we hav
digitally signed. The Marco code performs a lot of calculations then a
the end copy data a new tab. Although the macro does not change, we ge
"You have modified a signed project. You do not have the correct key t
sign this project. The signature will be discarded". This occur
regardless of the fact that the tab has a macro on it or not.

Is this a bug in Excel? I think we should be able to copy tabs in Exce
without breaking the signature...

 

[Ed]

See the MSKB article at
http://support.microsoft.com/default.aspx?scid=kb;en-us;288985&Product=xlw

Ed