How does one convert a stand-alone .tlb file created in a pre-2009 version of Delphi to a .ridl file using Delphi 2010? .tlb files that are part of projects get automatically converted, but this particular file is not part of any project.
try using the tlibimp.exe utility located in C:\Program Files\Embarcadero\RAD Studio\7.0\bin
tlibimp –I thetlbfile.tlb
来源：https://stackoverflow.com/questions/2323729/converting-a-stand-alone-delphi-made-tlb-file-to-ridl