Short Answer is Yes & No.
Long Answer: If the application was sequenced on WinXP and streamed on Vista then there is more chances for the application to work but reverse is not recommended.
Also if the application when physically installed does not work then even the virtualized application will also not work.
Python script can be converted in a standalone executable using one of the exe builder like
* py2exe (Windows)
* py2app (Mac OS)
* PyInstaller (all platforms)
* cx_Freeze (Windows and Linux)
* bbFreeze (Windows and Linux)
The following command can be used to compress entire directory in a file :
tar cjf <FileName>.tar.bz2 <DirectoryPath>
video.flv into video.mpg file:
ffmpeg -i video.flv -ab 56 -ar 22050 -b 500 -s 320x240 video.mpg
and following converts video.flv into video.AVI with MP3 Audio:
ffmpeg -i I_test.flv -ab 56 -ar 22050 -b 500 -s 320x240 -vcodec xvid -acodec mp3 video.avi