

This back door can be found in TRSDOS 6.2 and LS-DOS 6.3.1, but not in TRSDOS 6.1.2. The command MEMORY (A="N", B=128) will do this. It's documented! I confirmed by looking at the source code that TRSDOS/LS-DOS 6 has no such password, but I found that later versions of it have another, undocumented back door: if you turn on bit 7 of NFLAG$, all file password checking is disabled. The password listed as "back door" gives you access to all files regardless of what their real passwords are. */dct rrw3 driver utility driver or utilityīack door rs0lt0ff rs0lt0ff (nflag$ bit7) (nflag$ bit7) Lbasic/* basic (unused) (unused) (unused) The values in the TRSDOS 6 column should also work for versions of LS-DOS prior to 6.3.1.įiles LDOS 5.1.0 LDOS 5.3.1 TRSDOS 6 LS-DOS 6.3.1 If you have password information for other Model I/III/4 operating systems, let me know. If a password doesn't work, try others from the table and let me know of the error.

Where a filename matches more than one pattern, use the first one that matches.

The table below is based partly on documentation and partly on actual test.
