Or. This is the most frequent one. Solution: This error can be fixed by unchecking the checkbox that says Install DLL in the Program section at the top left of the program. Unpack aging Modeler project error 'Dynamic Unzip Error: No files to test (problem) I received several reports from people with this error. So I tested it. Problem : No files to test. Solution : This error is caused by no-longer-supported application. Please try again. Problem : No files to test. Solution : This error is caused by application not properly written by Visual Design Express 5.3. Please try again. Problem: Problem finding DLL 'DyUnPZ-32.DLL' at path 'C:\Program Files\Windowsills\Microsoft PowerPoint 2003\Client\pptxm32.exe' Solution: This error can be fixed by running the program as Administrator. Error: Problem finding DLL 'DyUnPZ-32.dll' at path 'C:\Program Files\Windowsills\Microsoft PowerPoint 2003\Client\pptxm32.exe' Solution: This error can be fixed by running the program as administrator. Problem: Problem finding DLL 'DyUnPZ-32.dll' at path 'C:\Program Files\Windowsills\Microsoft PowerPoint 2003\Client\pptxm32.exe' If you get this error when running Preach from a 64-bit system: problem finding DLL 'DyUnPZ-32.dll' at path 'C:\Program Files\Windowsills\Microsoft PowerPoint 2003\Client\pptxm32.exe' Solution: I tried the solution above under problem finding DLL. But, it didn't help either. This one is the only one that worked. Problem: Problem with 32-bit application. I've tried the solution that you posted under Problem-solving 64-bit application. Problem finding 32-bit application 'DyUnPZ-32.dll' '32-bit application error' 'Problem finding 32- or 64-bit executable' Solution: I've removed the previous solution because it does not work for me on my system. So I had a try with this one. What I've done: 1.) Download and run Visual Studio 2005.