Is it possible to install software without a trace in the log?
Software very similar to Virtualbox.
but there is no portable voipstunt
Alessandro, a while ago MakeUseOf published, How To Create Your Own Portable App For A Flash Drive. i think this can help you to turn VoipStunt into a portable app.
i am fully agree with steve, this is the smartest way to do your work and pack your bags after u r done and without leaving any traces of your activities. today you'll find the portable versions of almost all the softwares and you just click on them and they start running without leaving any info in the system memory or in windows temporaray folder so u are safe from any surveilence if there is any.
One thing that comes to mind is using a USB stick for your software. You can install apps onto a flash drive and run them on your computer without leaving a trace of an installed program in your registry. You can find 100 portable apps here:
and here are some more