This is DRIVEAID.BIN, uuencoded. It is a program for the Commodore-64 and the
1541/1571 drive. A one-block file is written to disk; you select which of
two things that you want the file to do. One option is to disable bumps, 
useful for running copy-protected programs. The other option is to instruct
DOS to make every effort to read sectors. That can be useful when hard-to-read
sectors start appearing in important files. The idea is to use either a
disk-copy or a file-copy utility to copy the file, and then get rid of it.

Once you have the one-block file, do a:

LOAD"FILENAME",D,1 <RETURN>

(where D is the drive device number) to do the "memory-write" to DOS address
106. Don't try to run the file, just loading it does the job. And any BASIC
program in memory is preserved. Docs included with this program.