vs.net2005 solution creation using DTE

Hi,

i am new to envdte80 and DTE. from whatever i have learnt from web,these are used to create and use the vs.net IDE

i have a code written for generating vs.net2003 solution using .net 1.1

DTE dte =null;

dte = (DTE)Interaction.CreateObject("VisualStudio.DTE.7.1","");

dte.SuppressUI =true;

dte.MainWindow.Activate();

dte.Windows.Item(EnvDTE.Constants.vsWindowKindSolutionExplorer).Activate();

Now i wish to change it to generate vs.net2005 solution, so i made the follwing changes

DTE2 dte =null;

dte = (DTE2)Interaction.CreateObject("VisualStudio.DTE.8.0","");

dte.SuppressUI =true;

dte.MainWindow.Activate();

--dte.Windows.Item(EnvDTE.Constants.vsWindowKindSolutionExplorer).Activate();

I don't know what to write in replacement of last line as EnvDTE80 does not have Constants class and vsWindowKindSolutionExplorer property.