Dear all, i'm very much thankful to all who helped us in installation of ORBs on SCO Open Server5. Finally we've finished installing MICO2.3.1 on SCO (OSR5) successfully out of all the three products viz., omniORB2.8.0,MICO2.3.1. and ILU. which we were trying to install simultaneously. Thanks a lot for your valuable and timely help which could lead us to this point. Regards, Roshan.