Fastgraph/Image for Windows uses the same FGI file format introduced in Fastgraph/Image 2.0 for DOS. Any FGI files created with Fastgraph/Image for DOS version 2.0 or later can be used directly in Fastgraph/Image for Windows programs.
However, FGI files created with version 1.x of the DOS product are not compatible with version 2.0, so they will not work with Fastgraph/Image for Windows. The FGI1TO2 utility converts such FGI files from the version 1.x to the version 2.0 format. If you have any FGI files created with Fastgraph/Image for DOS version 1.x, you must convert them to the new format using FGI1TO2 if you want to use them with Fastgraph/Image for Windows (you can instead rebuild them from their component files using FGILIB). The command syntax for invoking FGI1TO2 from the DOS command prompt is
FGI1TO2 fgi_file [/N:n]
where fgi_file is the name of the version 1.x library file to convert. FGI1TO2 will make a backup copy of the version 1.x library. The backup copy has the same file name as the library being converted but has a BAK file extension (if a backup exists, it is overwritten). FGI1TO2 will append its default FGI extension to fgi_file if it does not include a file extension. The /N option specifies the index size for the new library (refer to the description of FGILIB for details about the library index size).