Note on Unblocking Zip files:

HydrauCalc is distributed as a zip file. On Windows, zip files downloaded from the Internet, including any files it contains, may be “blocked” by the operating system. This means that the Application DLL and the CHM documentation may become unreadable.

To Execute the application DLL and to read the documentation CHM, you must first unblock the zip file before extracting its contents. To do this, right-click on the zip file, select “Properties”, click on the “Unblock” button, then click “OK”.

After unblocking the zip file, you can extract its contents into a directory.
