SplineTech VBS Debugger PRO can be installed on 

Windows 10 (all x86 and x64 editions)
Windows 8.1 (all x86 and x64 editions)
Windows 8 (all x86 and x64 editions)
Windows 7 (all x86 and x64 editions)
Windows 2008 (all x86 and x64 editions)
Windows 2012 (all x86 and x64 editions)
Windows Vista (all x86 and x64 editions)
Windows XP Pro (any Service Pack)
Windows XP Home (any Service Pack)
Windows 2000 Pro (Latest Service Pack)
Windows 2000 Server / Advanced Server (Latest Service Pack)
Windows 2003 Server (all editions, with or without Service Pack 1)