Can't Control-C during a file search

Scenario:

[T]ransfer menu, [S]earch for a file, [A]ll files, enter some random text and press enter.

The BBS then trawls through every file area looking for said file, but will not let a user break out via Control-C.

User has to wait until 100% completion.

Desired outcome - allow the user to escape using Control-C during the file search activity.