Many environments allow to incorporate C routines. Another possibility under Windows is using COM technology or the dynamic library cbios_dll.dll provided in the Smarx OS Protection Kit – see Smarx Compendium, chapter 10.12 for more details.
If you look for support of older environments of development environments: we still support a lot of older compilers, such as old Visual Studio or Delphi versions, as well as legacy environments, eg. older Windows or Linux versions, real-time OS or even DOS (via the CRYPTO-BOX Serial).
Please contact us to discuss further details: We will find a solution in almost all cases.