If you want to comment or uncomment a large block of code in VB6, use the Edit toolbar. There are buttons on there for doing this. (View>Toolbars>Edit).

If this is a feature you use regularly, you can also customize the right mouse menu and add these buttons to it.
Click View>Toolbars>Customize
Check the Edit and Shortcut Menus items
Drag the comment block command from the edit menu to Code Windows>Code Window
Close them both
Now when you right click on a selected block of text in the code window, you can comment it.

[Edited by Andrew Empson on 06-23-2000 at 12:27 AM]