REGWIZC The Registration Wizard control used by Microsoft to register MS products also contains a buffer overrun in the 'InvokeRegWizard' method. When called with a long string, pre-pended with '/i', we can gain control of the RET address and exploit the control in a similar manner as the PDF control. This exploit will cause a 'Regwiz.log' file to be created in the temporary directory, and once again will execute CALC.EXE and terminate the host.