Chem3D Ltd 3.1 under Windows 95 and 98 seems to start OK. The splash screen window appears, it loads various *.tbl files, but then it exits.
Chem3D Ltd 3.1, which is part of ChemOffice Ltd 2.0, was developed and released well before Windows 95 was finally released. It is not compatible with Windows 95/98. We have made a ChemOffice Ltd 3.1 free update available as a solution for Chem3D Ltd 3.1 users. Please note that this free version will help, but we highly recommend upgrading to the latest version.