Update README.md

Author: MPSystemsServices

README.md

@@ -27,6 +27,8 @@ Python CodeBase Tools provide the following capabilities:
 * Copies DBF tables to CSV and System Data (fixed field length) text files as well as importing those formats directly in a DBF table.
 For all functionality see the HTML documentation of this module.
 # Support for Python Versions
-The .PY files in Python-CodeBase-Tools to function are designed to be cross platform.  However the compiled library .pyd file is specific to the Python version you are using.  Currently, Python 2.7, 3.6, and 3.7 are supported.  Support for earlier Python versions can be made available if interest is strong enough.
+The .PY files in Python-CodeBase-Tools package are designed to be cross platform, functional on all versions of Python from 2.7 and up.  However the compiled library .pyd file is specific to the Python version you are using.  Currently, Python 2.7, 3.6, and 3.7 are supported.  Support for earlier Python versions can be made available if interest is strong enough.
+# OS Compatibility
+The Python .pyd files which wrap the CodeBase(tm) c4dll.dll module were compiled for Windows.  They are 32-bit modules but will run properly on either 32-bit or 64-bit Windows version 7 or later.  The COM functionality in ExcelComTools and DBFXLStools2 is specific to Microsoft Windows. As of October, 2018, the LibXL product, upon which the ExcelTools module is based (also required for the DBFXLStools2 module) is a Windows-specific component.  
 # Python-CodeBase-Tools Licensing
-This package is copyright M-P Systems Services, Inc., and is released to Open Source under the GNU Lesser GPL V.3.0 license, a copy of which is found in this repository.  The CodeBase-for-DBF module, is covered by this same license.
+This package is copyright M-P Systems Services, Inc., and is released to Open Source under the GNU Lesser GPL V.3.0 license, a copy of which is found in this repository.  The CodeBase-for-DBF module, is covered by this same license.  The CodeBase package, including the core library c4dll.dll is copyright Sequiter, Inc., and is licensed under the GNU Lesser GPL v.3.0.