Right click on program icon appears in system notification area and choose "Preferences" menu item from pop-up menu or click on button on PNotes Control Panel.
When "Preferences" dialog appears, choose "Misc" page.
Sometimes you may want to use your preferred internet browser instead of system default. For example, you may have yuor preferred browser installed on USB stick. To do so, click on appropriate button and choose desired executable file:
In order to use system default browser leave the field empty.