If you encounter the following error message during the installation process
ORA-12705: Cannot access NLS data files or invalid environement specified
follow the instructions below.
- Right-click on the Windows-icon on your taskbar.
- Choose System from the opened context menu.
The Settings-window dialog will appear on your screen.
- Scroll down to Related settings and click on System info.

The System-window dialog will appear on your screen. - Click in the left panel on Advanced system settings.
The System Properties-window will appear on your screen. - Click on Environment Variable.
- Select in the User variables-window the NLS_LANG variable
- Click Delete.
- Select in the System variables-window the NLS_LANG variable.
If there is no NLS_LANG variable in the system variables-window, proceed with step 10.
- Click Delete.
- Click OK.
- Restart your windows-system.
After the restart of your system, proceed with the installation process of the
CreateCtrl Suite 10.