The following steps will enable Japanese Language.
The back end Database being used is a UTF8 character set Database.
Control Panel -->Religion and Language --> Administrative -->change system locate
Select Japanese on it and then reboot the system.
2. Click on windows start button and right click on computer .
3.In that select Advanced system settings.
4. In System properties --->select Advanced tab ---> select environment variables.
Click at bottom New button and add the language as NLS_LANG= American_America.JA16SJIS
Click ok button
Now open the command prompt and right click and select properties.
In that properties select the FONT tab and Raster Fonts and size is to be 8x18.
Now Japanese character has inserted.