After you have purchased the Splashtop Whiteboard application from the Apple App store and installed it on your iPad, the Splashtop icon 
will be displayed on your iPad's home screen with your other application icons. You must also download the free Splashtop Streamer application from http://www.splashtop.com/whiteboard/download and run it on your computer. If a User Account Control dialog box appears during the installation process, select Yes to continue. You will need to accept the Splashtop Inc. End-User License Agreement in order to continue.
The Installer will add the Splashtop Streamer application to your Startup folder in Windows, so by default it will be launched in the background whenever Microsoft Windows starts. You may disable this after installation, by un-selecting the "Start Splashtop Streamer when this computer starts up, and allow remote clients to connect" check box in the Settings tab (not recommended).
After installation has completed, the five-tab setup dialog box shown above will display. You will be required to create a security code before first-time use. A few rules apply to security code creation. Your security code must be between 8 and 20 characters long; must contain letters and numbers; and may optionally contain the following special characters:
/ ( ) $ & @ " . , ! ' [ ] { } # % ^ * _ | ~ < >
When you close the setup dialog box, a one-time message will inform you that the application is running. The Installer adds a Splashtop Remote shortcut into the Windows Start Menu. Selecting this allows you to re-open the setup dialog box at any time. You can also open it by clicking on the Splashtop icon in the Status Bar.