I have made a portable version of FreeStudio, an awesome application which allows you to convert, burn, download of YouTube, etc.
For reasons of Copyright, I am not allowed to give you the actual files of this application but here's the guide on how to make it portable.
1. Download This : http://www.mediafire.com/?hktytdtmomy
That is the launcher files. Extract that where you will keep FreeStudio Portable.
2. Download FreeStudio : http://dvdvideosoft.com/download/FreeStudio.exe
Install this to C:\Program Files (recommended but not necessary)
3. Copy the contents of C:\Program Files\DVDVideoSoft\Free Studio to (the directory of the launcher exe)\App\FreeStudio
4. Copy the contents of C:\Program Files\Common Files\DVDVideoSoft to (the directory of the launcher exe)\App\FSM
5. Run FreeStudioPortable.exe to start the portable version of FreeStudio.
And Voila. Your done!