I get a warning message when installing on Windows Xp or Windows Vista

After extracting the zip file to your PC. When you run the MSI file, please ignore the Open File Security warning, regarding the publisher not verified message when installing the application.

When you download a file from the internet it is digitaly signed by your browser. Since the file is zipped the zip file is digitally signed but the MSI file is not.

We have not found any other problems with the installation, and regard this a bug of the operating system.