NETOS 6.0 Re-install

Hello I have installled and run NETOS 6.0 with GHS 3.61. - All ok I have been updating NETOS 6.0 files and want to go back to the orginall installed files. When reinstalling the NETOS 6.0 bits from the CD I get the following error… Unhandled Exception Error Number: 0x8007024 “Incompatible version of the RPC stub” Setup will terminate Any ideas ? using windows 98 Thank you - Regards Michael

Just install to different folders - I have Net+os 6.0 GHS 361 - Net+OS60_gnu - Net+OS 60 - etc all on the same computer