Hai Sylvain Allard

Which version of CrystalReports are u using?
1. Try this way

Open a new instance of VisualBasic. Go to project menu and select the Components. GO to the designer tab and set the CrystalReports option.

Right click on the Project Explorer and select the ADD > More ActiveX Designers > CrystalReports
and then right click on the workspace(White Space)
Check the mail sent to u for the attachment.