Open Windows 7 help (helpPane.exe) from .Net application
ProcessStartInfo startInfo = new ProcessStartInfo(@"c:windowssystem32control.exe", "/name Microsoft.BackupAndRestore");

startInfo.UseShellExecute = true;

Process.Start(startInfo);

HxHelpPane pHelpPane = new HxHelpPane();
pHelpPane.DisplayTask("mshelp://windows/?id=e725b43f-94e4-4410-98e7-cc87ab2739aa");