Memloc

From FFXI Wiki

"Memloc" is a term that refers to a memory location or offset that programs (like KParser) need to find FFXI's data in RAM. In general, one can expect the proper Memlock to change after updates.

In the case of KParser, you go to Tools -> Options -> Live Memory. Click the "Edit" button, and enter the new Memloc. This is no longer necessary with the newest versions.