I commonly use rar and zip to compress old files stored on computer. To ease antivirus scanning tasks and offer basic privacy prevention for those files, I often use the same two or three "generic" passwords at encryption time. These are always non-critical files, such as student's assignement, old lesson plans, or minutes of various commitees.
It would be very useful to enter these generic passwords in Extensions | Rar settings to allow FileLocator Pro to index the content of these archives. Afterall, one of the main usage of indexing for me is to find long lost archived files ;-)
Of course, such setting would defeat a strong security policy as content of the files would be indexed, but for real privacy, I can always use strong and not-generic passwords on my archives.