ATBinHex was originally a Delphi component http://atviewer.sourceforge.net/atbinhex.htm

This is Lazarus version.

• Some features disabled via ATBinHexOptions.inc (printing, regex hiliting of URLs)
• Removed method OpenFile (it used Win API), now use OpenStream
• Encodings are supported again, via LConvEncoding, in non-unicode modes only