If you do not have the desired satellite file in the transponder folder,you can manually add it to this folder,by doing the following:
1.start Crazyscan and scan the satellite,
2.Save the dvbdream.ini file that was created from Crazyscan,and then,
3.Place it in the transponder folder in the DVBDream directory,
and then,
4.Select the satellite file in Options,diseqc,etc,as described by OpenFox above:
Here's an example.I chose Eutelsat 10E because it is at hand now to me: