Development environment: propietary compiler or gcc, graphic IDE (for win32 or Solaris). Remote debugging via serial line or Ethernet. Dynamic module loading/unloading

Fail signal and recovery - setjmp/longjmp

Supported programming languages: C, C++

Compatibility with other RTOS is limited. There are two APIs - VxWorks native specific API and POSIX 1003.1b compliant API, but POSIX API is not fully implemented.