MATLAB: Pkunzip for x64 Matlab

pkunzipx64zip

I have received a bunch of data and a pkunzip.exe file which I am supposed to run in Matlab using dos commands. I.e.:
dos(['pkunzip -o','data1.zip']);
But I am running Matlab x64 (R2011b) on an x64 win7 machine and the response I get from matlab is:
This version of C:\path\PKUNZIP.EXE is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.
Does anyone know how I can require an x64 pkunzip.exe for use in Matlab?
Thanks in advance

Best Answer

"Does not require a license key to run the Standard Edition package"
Related Question