Why are the variables not downloaded?

[LaVolpe]

when form2 is unload value should go back to 0, but this does not happen check it out

When forms are unloaded, their GUI portions are unloaded: controls, menus, etc. Declarations are not reset. As mentioned, setting the form to Nothing after its unloaded will reset those variables. If you don't do that, then you should manually reset the variables during the form's load or unload event