Hi I try to remove all the printers drivers not used. The 1st and 3éme lines lists the whole of the printers drivers installed on the computer. The 2éme line call the function with a parameter of request for suppression and, systematically, the request for suppression fails without call the error function, in the line $ObjItem.delete_ and stop the program with a error not intercepted by AutoIt.error : The requested action with this object has failed The same script in VBS work properly