I'd like to be able to install BRU on a pen drive. It'd allow me to keep my files on the work computer organised. the system there is too locked down and I can't install anything on the machine. Adminsitrators are too fussy.
Why not just download the "No Install" version? THat's exactly what this is for, and the only registry key which get installed are in HKEY_CURRENT_USER which you should have write-access to.