Problem: dfPower Achitect support for new CASS Cycle M options Prerequisite Software: dfPower 8.1 SP1 (8.1.1), USPS data from August 2009 or later Operating System: win32 To install the patch: 1. Unzip the archive dis-fix13031-win32.zip into the root directory of your dfPower Studio installation. This is typically: C:\Program Files\DataFlux\dfPower Studio\8.1 Substitute the appropriate directory if you installed the product in a different location. The following files will be installed or updated by this patch: bin/addver28.dll bin/ArchVerify.dll bin/dtvrfy20.dll