Escape characters for paths in NSIS

Is this still an unresolvable issue with the NS installer?

http://portableapps.com/node/4530

I just installed the portable GPG and Enigmail and the path to my gpg.exe is being changed when I exit TB. The path for my TB includes a directory starting with a lowercase n, NSIS seems to turn this into some control character when it saves back to the "extensions.enigmail.agentPath" line in pref.js. Works fine with an uppercase N though.

This only happens with the path to gpg.exe, all the other paths in pref.js are fine.