Windows XP / 2000 / NT (SP4 or higher)
Compilers: Microsoft Visual C++ version 5.0 and 6.0
      Microsoft Visual C++ version 7 (native only, not .NET)
For Java: Version 1.3 or higher
Hardware: Pentium or higher, 70M disk, 128M RAM

Solaris 2.5.1 / SunOS 5.5.1 or higher
Compilers:
     For C/C++: Sun Workshop C/C++ compiler version 4.2 or higher
           gcc 2.8 or 2.9x, g++ 2.9x (not gcc/g++ 3.x)
     For Ada: GNAT version 3.14 or higher
For Java: Version 1.3 or higher (or 1.2 "reference implementation"),
     running native threads
Hardware: Sparc & UltraSparc, 150M disk, 128M RAM

AIX 4.2 or higher
Compilers:
     For C/C++: IBM xlc/VisualAge C++
           gcc 2.8 or 2.9x, g++ 2.9x (not gcc/g++ 3.x)
     For Ada: PowerAda 5.x
Hardware: IBM RISC System/6000, SP/1 or PowerPC;
      60M disk, 128M RAM

Red Hat Linux version 7.2 or higher
Compilers:
     For C/C++: IBM xlc/VisualAge C/C++
           gcc 2.8 or 2.9x, g++ 2.9x, gcc/g++ 3.2x
     For Ada: PowerAda 5.x
For Java: Version 1.3 or higher
Hardware: Pentium II or higher, 150M disk, 128M RAM

Note: RootCause works with 32 bit applications on either 32 or 64 bit operating systems.