Hello,We have an app that contains code that uses instances of the Service Controller class in .net 3.5 SP1 (System.ServiceProcess v2.0.0.0) to manipulate local services on machines. All works well in Vista and XP. However, in Windows 7 it always throws an "InvalidOperationException" when making calls to the Start() or Stop() methods. Also, it does not matter if the app is running under requestedExecutionLevel="requireAdministrator" or even if UAC is completely turned off. The problem persists.Please help!

Hi JMThese forums are focused on the end user beta tester for Windows 7.Here are some links to the forums and other resources that are focused on developers and developing applicationsfor Windows 7. Software Development for Windows Client (MSDN Forums) MSDN Library-Windows 7 Windows 7 Blog for Developers Developing for Windows 7 Windows 7 Developers GuideThank You for testing Windows 7 Beta Ronnie Vernon MVP