I'm posting this just in case anyone who is working on a DOSBox fork might be interested. It is completely irrelevant to DOSBox's main purposes.

There is a commercial fork of DOSBox called dbDOS (www.dbdos.com) that has included clipboard pasting (with no 16- or 256-character limit) in the past few versions. A new version apparently as a new file system with file-locking that is supposed to make it suitable for multi-user databases. It seems to be impossible to test this without buying a license, because there seems to be a new "mount" syntax that isn't immediately obvious.

The source code is supposed to be posted here, under "dbDOS Open Source Download," but the new version hasn't been posted yet:

http://www.dbase.com/support/updates/#dbDOS

If it doesn't appear in the next few days, it may be worth reminding the developer to do so.