diff --git a/COPYING b/COPYING
index f1362cb..6514f7d 100644
--- a/COPYING
+++ b/COPYING
@@ -14,3 +14,8 @@
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+
+
+    ALL FILES WHICH HAVE A NAME ENDING IN .ISBPL IN THIS REPOSITORY MAY 
+    BE USED IN ANY PROJECTS, INCLUDING PROPRIETARY ONES.