Robert writes in: "There is rather good support for basic ISIS software (unfortunately they seem to be moving towards MS Windows) but it is very difficult to get free software (also free of charge) for constructing CGI. So I wrote my free iAPI (in C) to help others deal with problems I had before with ISIS." it's licensed under the GNU GPL...
iAPI for CDS-ISIS
By dchud - Posted on June 5th, 2000