XPNet.jar is the user interface in Java. You may find that your system recognize the .jar file
as a .zip file, while it downloads the file. Please change the file extension back to .jar.

xpnet.dll is a program written in C, and complied using Microsoft Visual C++ Toolkit 2003.
It is called by the Java GUI XPNet.jar. Please put xpnet.dll under the same directory as 
XPNet.jar file, or put xpnet.dll into a folder that is in your system path so that XPNet.jar can 
find it.

To run XPNet, JRE2 version 5.0 and above must be installed.

You may need to install Microsoft .NET Framework Version 1.1 Redistributable Package, before
starting the program.

The xpnet.dll must be located in the same folder as the XPNet.jar user interface,
or you need to set up environment variables so that XPNet.jar can load the program successfully.