64 USERS ONLY hy urn i a. hicks the least common, L'SR for user files. A Child-Proof After running Disk Lock to lock your pro Cap director)' that now die program types of grams, you will notice upon loading the all locked files have a wedge or greater for the Commodore than symbol after the file type. 64 0 ZX2A "1541 TEST/DEMO 13 "HOW TO USE" PRG< 5 "HOW PART TWO" PRG< 4 "VIC-20 WEDGE" PRG< proof cap on a bottle of medicine. Just 35 1 "C-64 WEDGE" PRG< the cap keeps the child from tampering 4 PRG< with the content of the medicine bottle. "DOS 5.1" 11 "COPY-ALL PRG< Disk Ijock prevents tampering with the 9 "PRINTER TEST' PRG< 4 "DISK ADDR. CHANGE" PRG< 4 "DIR" PRG< 6 "VIEW BAM" PRG< 4 "CHECK DISK" PRG< 14 'DISPLAY T&S" PRG< Lock works the same as a child content of your programs. You can load, run and change your programs and resavc them with SAVE"0 program name" .8 as usual. Disk Lock also helps stop accidental Put a child-proof loss or erasure. It allows you to lock and unlock individual programs or lock all cap on your disk the programs of :m entire disk in as short of time as it Cakes to load die director}'. If you're like me and have several Locking a program or disk is actually a built-in feature of die Commodore ma chines, but for some reason Commodore programs. young children visitors and computer-il failed to implement it into a BASIC; com literate friends wanting to try out all your mand we could all use. Consequently, in programs, having your programs locked order to lock a program a complex se quence of steps must be taken, bits read. can save you worn' about the loss of a fa 5 "MOW PART TWO" PRG 4 "VIC-20 WEDGE" PRG nately, you don't need to understand ev chine, run it and the program will direct 1 "C-64 WEDGE PRG en- phase to use the program, but if you you to insert die disk you wish to lock 4 "DOS 5.1" PRG are interested and learning about DOS into the drive. \\ rite-protect tabs must be 11 "COPY/ALL PRG (disk operating system) commands, this removed from die disk since this pro 9 "PRINTER TEST PRG is an excellent program to study. vorite program. After loading Disk Lock into your ma compared and re-written to disk. Fortu gram writes new codes for the program 4 "DBKADDR. CHANGE" PRG Remember that locking a program is type. The computer program men asks if 4 "DIR" PRG not a sure cure for all possible problems, you wish to lock the entire disk or indi 6 "VIEW BAM" "CHECK DISK" 4 14 "DISPLAY T&S" prc; but it will help to avoid those accidental vidual files. To see the results of running Disk Lock, load the director)- with LOAD'S".8. PRG losses. If at any time you wish to unlock a PRG single program, all you need to do is to use the resave command. SAVE"(5 0:Pro- The program may boggle some of jour gram Namc",8. computer buddies' minds, by the direc On die left side of die display is the num Warning tor)' display on a locked disk. Normally ber of sectors each program occupies on when you display a disk's director)- with the disk for each program, In the center Do not try to lock a program which LOAD"S",8 here is what you'll see. of tlie display is each programs name has an asterisk next to die file (*PRG). and to the right is an abbreviation for the The asterisk signifies the program was type of program it is. The four common never closed properly. You must correct 0 1541 TEST/DEMO 13 "HOW TO USE" 2X2A PRG types are PRG for program, SEQ for a se this error condition before the file can be quential file, REL for a relative file, and locked Before typing these programs, read "How to Enter Programs" and "How to Use the Magazine Entry Program." The BASIC programs in this magazine arc available on disk from Loadstar, P,O.Box30007,Shrevepori1U7113lM)M7,l-800-831-2694. Disk Lock 20 POKE 53280,6:P0KE 53281,0 :PRINT"[CLEAR,WHITE]":CLR'ERIE 30 FOR 40 DATA 50 FOR 60 DATA 1=0 TO 4:READ a F$ (I) :NEXT'FKFE DEL,SEQ,PRG,USR,REL'BTHF 1=0 TO 4:READ L$(I):NEXT'FKLG DEL<,SEQ<,PRG<,USR<,REL<'BYBI 70 T-18:S=1'CGWF 80 PRINT:PRINT:PRINT:PRINT"[SPACE3] COMMODORE MAGAZINE 97