On Thu, Jun 3, 2010 at 17:43, Rex Chang <teranchang at gmail.com> wrote: > To whom it may concern, > > May I install 2.7.1. over a portable 2.6.6? Yes, make sure you follow the updated instructions (http://developer.pidgin.im/wiki/Using%20Pidgin#RunningWindowsPidginFromaUSBDrivePortableMode) if you're doing the manual portable mode thing. -D