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56 of 48,804 files

    Download PROUNLOK.zip

    Size 2 kB

  • This download is an executable MS-DOS program that will not run on a modern computer. It needs a DOS emulator such as DOSBox-X, Staging; or a virtualized MS-DOS or FreeDOS system.
    Browsers may flag this download as unwanted or malicious. If unsure, scan it with VirusTotal.
  • Last modified Jun 21, 2015 8:35:36 PM
     MD5 checksum 93de566fdcd4d95041b45d6269fc98b9
        Mime type Zip archive data

1985 March 30

  • Zip - DOS / Guides and how-tos
  • Rober Wagner, writer credits

Emulating PROUNLOK.COM in DOSee.

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DOSee pronounced dos/see, is our emulator used to run MS-DOS based software in your web browser.

MS-DOS (Microsoft DOS) was the primary operating system used by PCs during the 1980s to the early 1990s and is the precursor to Microsoft Windows.


DOSee is a slimmed down, modified port of The Emularity.

The Emularity is a multi-platform JavaScript emulator that supports the running of software for legacy computer platforms in a web browser. It is the same platform that's running emulation on the Internet Archive.

EM-DOSBox is a discontinued, high-performance JavaScript port of DOSBox that is applied by The Emularity for its emulation of the MS-DOS platform.

DOSee uses BrowserFS ZipFS and ZipFS Extras to simulate zip file archives as hard disks within EM-DOSBox.

DOSBox is the most popular MS-DOS emulator in use today and is frequently used by commercial game publishers to run games from their back-catalogues on modern computers.


DOSee, built on The Emularity, EM-DOSBox and DOSBox. Capture screenshot and save function built on canvas-toBlob.js.

2 items in the archive
  • PROUNLOK.COM
  • PROUNLOK.DOC
[+] Configuration Copy text
3/30/85 PROUNLOK is a ONE-TIME process to remove Prolok from your program. It is an improvement over and replaces PROKEY.COM (a resident program). Using DBASE as an example: 1. Isolate PROUNLOK.COM and DBASE.EXE onto a separate subdirectory or floppy. You don't need the original floppy to run this. 2. Type PROUNLOK DBASE If everything works ok you will wind up with a DBASE.EXE that's about 6K smaller and minus the Vault (Prolok) code. It's the .EXE the publisher started with. You can copy and run it as you like. Has been tested with dBase III (1.0), Framework, Realia and Excel. If it doesn't work on your program, consider these possibilities: 1. Your program isn't protected by Prolok. Do a TYPE on the .EXE file. Vault always puts their copyright notice in the first 200-300 bytes in plaintext (unencrypted). Note that Ashton-Tate quit using Prolok in Jan 85. They may go back. 2. Is there a procedure for installing your program on hard disk? If so, you have the new, rewritten, Prolok. This program will not work. Kudos to the Lone Victor (PROLOK.UNP) for finding the right intercept point. I automated the process. History: V1.0 3/01/85 (First release) V1.1 3/02/85 Wraparound when size of .EXE > 64K V1.2 3/30/85 Was not writing final short sector to .EXE If my program works for you, I would appreciate a contributation of $25. Robert Wagner 2110 65th Street Lubbock, TX 79412 806-745-5309 (home), 763-1931 (work), 763-3375 (BBS) →'+╥♠í7#Ž└š☺[♠▲rF‹w+‹O-ⁿ¼<→t:<t2<♪t.<áu☻░ ¬B&€}á u♠╜
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