Fritz!DSL Wireless Lan Utility – WLANGUI.EXE
Wlangui.exe will be found in your c:\Program Files\avmwlanstick\ folder. It installs with your Fritz! DSL Service by AVM GmbH. This program lets you configure, tweak, and diagnose problems with your DSL connection. More information (in German) can be found at http://www.avm.de/de/index.php3?Produkte/Technologie_DSL/index.html. Unless this file is causing you problems, we'd recommend leaving it in place.
Safe
AVM GmbH