Comment by badsectoracula

Delphi 2, the first 32bit version of Delphi, had all of this. Some, like threads, even had wrappers (TThread), but Delphi came with Win32 bindings out of the box so all Win32 functions were available too - and it came bundled with documentation for the APIs. In addition, calling out to a DLL was trivial so even if a function wasn't available, you could just define it. Pretty much anything you could do with a C compiler was possible with Delphi 2 too.

Free Pascal obviously has all of that stuff too.