That's the very one - thank you very much! My memory for such things is poor.
Having a problem with it...
Using FS-UAE 3.0 on a PC with Windows; installed OS 3.9. It's installed in a directory, not an HDF. Also have a Work: directory as a hard drive.
I un-LHA'd Boing Bag 1 on the Work: drive (within OS 3.9, not from Windows) but when installing it ran up against some read-only files and crashed. It wrecked the System installation, so I had to start again.
Rebuilt 3.9 System: and am keeping a copy of the folder safe.
I've un-LHA'd Boing Bag 1 again to Work:, but thought I would add the read/write flag manually to the entire folder before installing.
Problem is it keeps getting part way through applying the W flag, then FS-UAE session freezes, crashes and disappears.
When I restart, I can run the protect command again, but it crashes again on different files every time.
I think I will just knock up a quick HDF file, un-LHA the archive to there and then run PROECT on it.
Meanwhile thanks again for your help.