...why would you want line numbers?...
There is no such option. Of course your post was 9 years ago - things change.f you are used to BASIC listings with line numbers you can make them visible by executing the following
instructions:
Start VB and click the menu item “tools”.
Click the item “Options”
Click “Text editor Basic”
Click the small square “Show all settings”
Under “Display” click “Line numers”.