Thank you. I did as you wrote.
I rebuild the program with the Output type=Console. Now I have the message : "Load error C:\windows\system32\cblviom.dll".
I searched in the C:\Program Files (x86)\Micro Focus\Visual COBOL\bin folder and found cblviom.dll. I copied in windows\system32\, I rebooted the system and tried to run the program. The message remained the same (Load error.....).
I don't get why ?