http://support.microsoft.com/kb/932991
SYMPTOMS
Pop-up dialog boxes that are created by the Wireless Zero Configuration service appear in Microsoft Windows CE 5.0. This update enables you to hide these pop-up dialog boxes automatically.
MORE INFORMATION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.After you apply the software update that is described in this article, you can configure Windows CE 5.0 to automatically hide Wireless Zero Configuration pop-up dialog boxes. To do this, you must add or modify the following registry entry in the registry configuration files:
[HKEY_LOCAL_MACHINE\Drivers\Builtin\Ethman] "Popup"=dword:0
