diff --git a/product/ERP5Type/PropertySheet/BaseCache.py b/product/ERP5Type/PropertySheet/BaseCache.py
index d702ca4b49d34493484c1781b91ca0f9d0cd7f76..69ce409a88e3343d6c980acf8bccff1ba3ea731f 100644
--- a/product/ERP5Type/PropertySheet/BaseCache.py
+++ b/product/ERP5Type/PropertySheet/BaseCache.py
@@ -1,3 +1,31 @@
+##############################################################################
+#
+# Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.
+#                     Ivan Tyagov <ivan@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
 class BaseCache:
   """
   """
diff --git a/product/ERP5Type/PropertySheet/CacheFactory.py b/product/ERP5Type/PropertySheet/CacheFactory.py
index a60071c9d4e50d9f72985a65aa76fc2d897fe790..f354eb9a8ab165d23c3fc04151b04aaa0f95fa60 100644
--- a/product/ERP5Type/PropertySheet/CacheFactory.py
+++ b/product/ERP5Type/PropertySheet/CacheFactory.py
@@ -1,3 +1,31 @@
+##############################################################################
+#
+# Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.
+#                     Ivan Tyagov <ivan@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
 class CacheFactory:
   """
   CacheFactory. 
diff --git a/product/ERP5Type/PropertySheet/DistributedRamCache.py b/product/ERP5Type/PropertySheet/DistributedRamCache.py
index b888135b4808662cb90c902e7fda8c7cf5c52612..776eadc150acd94a636be1d8db1c07ca521fb1e5 100644
--- a/product/ERP5Type/PropertySheet/DistributedRamCache.py
+++ b/product/ERP5Type/PropertySheet/DistributedRamCache.py
@@ -1,3 +1,31 @@
+##############################################################################
+#
+# Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.
+#                     Ivan Tyagov <ivan@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
 class DistributedRamCache:
   """
   """
diff --git a/product/ERP5Type/PropertySheet/SQLCache.py b/product/ERP5Type/PropertySheet/SQLCache.py
index 9912f22c9658ed7a3b1ec1f02f8178a0dba5ee11..711192cc226dedbaaaeae638a43d9e5bc5936157 100644
--- a/product/ERP5Type/PropertySheet/SQLCache.py
+++ b/product/ERP5Type/PropertySheet/SQLCache.py
@@ -1,3 +1,31 @@
+##############################################################################
+#
+# Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.
+#                     Ivan Tyagov <ivan@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
 class SQLCache:
   """
   """