Integrating old toolboxes into newer versions of Matlab

I have an older version of Matlab (6.1) that has a wavelet toolbox that is quite handy. I recently obtained a license for up to date versions of Matlab as a consequence of being a Matlab author but my new license does not include the wavelet toolbox because my book does not use wavelets.

I would like to use the scripts from the wavelet toolbox, like cwt, in the newer version of Matlab (2011a). It does not work even though I added the toolbox folder holding the wavelet scripts to my path in the newer version. So, (1) am I trying to do something illegal and (2) am I trying to do something technical impossible? If it is legal and if it is technical possible, can someone point out the error in my ways?

Thanks.

Answer 1

[Walter Roberson]

The toolkit version is only licensed against the corresponding MATLAB version, and MATLAB does take steps to try to prevent versions from being mixed. Toolkits also often take advantage of undocumented version-specific functionality.

So against the license, and technically difficult when it is possible at all.