\laptop\html\detectEncoding.html


detect byte order mark
https://www.w3.org/International/questions/qa-byte-order-mark

W3C
  https://validator.w3.org/i18n-checker/
     BOM, markup validation, mobileOK, RSS/Atom feeds, CSS stylesheets, find broken links
   tools 
     https://validator.w3.org/nu/           nu html checker
     http://web-platform-tests.org/         cross-browser test suite
     https://jigsaw.w3.org/css-validator/   CSS Validation Service
     https://validator.w3.org/checklink     Link Checker
     https://validator.w3.org/i18n-checker/ W3C Internationalization Checker
     https://www.w3.org/RDF/Validator/      Check and Visualize your RDF documents
     https://validator.w3.org/feed/         RSS, Atom Feed Validation Service
     https://validator.w3.org/unicorn/      Unicorn - W3C's Unified Validator

https://www.pgdp.net/wiki/Byte-order_mark#Removing_the_BOM


detect cut and paste encoding

 unicode-detector 
 view-chars 
 xspdf 
 whatisit 



scripted edits of binary bytes and characters

hexdump
  https://www.cryptosys.net/pki/utf8bom.html
    check with the hexdump utility
    https://www.di-mgt.com.au/hexdump-for-windows.html 

debug
  https://thestarman.pcministry.com/asm/debug/debug.htm
    A Better (and also for 32-bit code!) DEBUG Clone!
  https://handwiki.org/wiki/Software:Debug_(command)
  http://wiki.freedos.org/wiki/index.php/Extension_commands
    need not necessarily be identical to the MS-DOS version
    Alias   Backup   Basic   Debug   Defrag   Edlin
  https://sourceforge.net/p/freedos/news/2021/01/updated-debug-and-jwasm/

edlin
  http://www.x-hacker.org/ng/edlin/ng96d9.html
  https://sourceforge.net/p/freedos/news/2021/03/freedos-edlin-219/

c:\security\help\file.help

 system extensions and tools

c:\Windows\System32\*.exe (490)  *.com (7)

c:\MinGW\sys\1.0\bin\*.exe  (181)
bash os DOS extension for linux commands 
   \laptop\DOS\bash.txt

lantastic.pl/e

www.systoolsgroup.com
download.cnet.com/developer/systools/i=10358500/


file conversion utilities
fillable pdf to jpg,png in zip  www.pdftoimage.com
  txt to pdf          www.freePDFconvert.com
image to text         www.free-online-ocr.com
power archiver zip  to c:\Users\William\AppData\Local\Temp
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