Grazie per le tue spiegazioni sempre complete
Le istruzioni:
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Installation
Graphics32 supports Delphi versions 4, 5, and 6, and C++ Builder 5.

Note, because some properties of range bars and gage bars have been changed, you can obtain some error messages while opening your previous Graphics32 projects. Just ignore these messages and Delphi will fix DFM files automatically.



Unzip the files;
Add location of main installation directory to Tools | Environment Options | Library | Library Path.
Select File | Open... on the menu bar. Set Files of type to Delphi package source, locate and open GR32_DSGN_D6.dpk (GR32_DSGN_D5 for Delphi5, GR32_DSGN_D4 for Delphi4 or GR32_DSGN_B5 for C++ Builder);
A package editor window will appear. Click Compile, then click Install;
If compiler asks whether you want to save changes, usually it is a good idea to choose No.
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Non parlano di runtime e design time, forse per questo motivo non funzionano bene. Smanetto ancor un pò.
Grazie ancora