After signing successfully the error Erreur OLE 800AC472 appears when trying to open the exe file.
Unsigned exe files work properly. But all the ‘Successfully signed’ files display the same error.
Could you try to see if this problem occurs with our demo workbook too?
http://download.xlspadlock.com/Markbook-Demo-32.exe
It is signed.
Please also try method 1 from
https://support.microsoft.com/en-us/kb/3001579