Dear all, I made a portable version of Ifeffit, which is updated to the latest version. To run a program x, please double click RunXxx.bat file. There are also 3 portable python (2.5, 2.6, 2.7) with Ifeffit module. Please extract it to the same folder. (extract here as folderA\IfeffitPortable, folderA\PythonPortablexxx) Download below, IfeffitPortable: http://dl.dropbox.com/u/2776935/IfeffitPortable.ziphttp://dl.dropbox.com/u/2776935/IfeffitPortable.zip Python 2.5 portable: http://dl.dropbox.com/u/2776935/PythonPortable_1.1_py2.5.4.zip Python 2.6 portable: http://dl.dropbox.com/u/2776935/PythonPortable_1.1_py2.6.1.zip Python 2.7 portable: http://dl.dropbox.com/u/2776935/PythonPortable2.7.2.1.zip If there is a problem, please let me know. I will make more information available later. PS, if you need a dropbox, which I highly recommend. Please click my refer link http://db.tt/WRHqYkA, which will increase my box 250MB. Best, Jack Song