VBA Project Lock

Hi All,



I need to lock (VBA Project) my destination workbook with password. But i dont want to use the sendkey option.
Please advice on the below question?

I have the current workbook with macro. I moved some sheets from current workbook to the destination workbook. now i want to lock the vba code in the destination workbook through my current workbook.

I have to send the workbook to my customer.