One of the many things I do is write install routines. I have just modified an existing install routine to intall the latest version of QFLR5. It used to be known as XFLR5 and ran on Windows only but it has been rewritten to run under a number of operating systems. I only write the install routine for Windows. The install routine for version 0.03 can be found at http://xflr5.propdesigner.co.uk/ and you can find the QFLR5 web site at http://sourceforge.net/projects/xflr5/.
QFLR5 being based on XFLR5 4.17 is a stable product and a version number of 0.03 is not as bad as it seems. Read the XFLR5 web site to find out more.