Btw... the Aminet update 5.3 (PFS version 18.5 instead of the original 18.3) has some issues in updating the free released version.
First it asks for the CD, which can be easily bypassed assigning PFS3: to the folder of the extracted archive.
But then it asks for the Key so... not possible. Even if you provide a valid key, spatch doesn't succesfully patches the L: filesystems nor PFSdoctor utility. (I guess because the patch tries to find registered binaries dunno).