The iscobolc Library The ability to call a COBOL program from a C program is provided by the iscobolc library (identified by iscobolc.dll on Windows and libiscobolc.so on Unix). There are two iscobolc libraries: iscobolc to call COBOL programs compiled without -cp option iscobolc_n to call COBOL programs compiled with -cp option The iscobolc library has dependences to the Java jvm library (identified by jvm.dll on Windows and libjvm.so on Unix). Both of these libraries must be available to the C program.