You can user any database version. For Free use 10g Express edition with
Universal Language.
1. Create a database with character set as UTF8.
2. Change the Forms NLS_LANG to AR8MSWIN1256 in regedit.
3. Change the HORA Keeptools Oracle TNS Configuration file to
Developer6i Tnsnames.
4. Change the Regional Settings tab in Windows to English and Local
menu as United States. and in Advanced TAB select Arabic Encoding to use.
That's it. Now you are fully working in Arabic Environment.