Like many BBS companies, the rise of the Internet starting around 1994 led to serious downturns in fortunes, and Clark Development went bankrupt in 1997.

Some sysops tried to run PCBoard on the (then) new Windows 95 operating system by Microsoft[1] and reported mixed results.

This made multiport cards like the G-Tek "BlackBoard", "BBS550" or "SmartCard" and the "DigiCard" by Digi International popular among sysops.

Clark Development Company (CDC) pioneered the FILE_ID.DIZ format[2] as well as a powerful scripting language (PPL), which supported modifications and to a large degree replacement of most standard commands and processes.

A compiled interpreter script written in PPL was called PPE (PCBoard Programming Executable).

Clark Development Company went bankrupt in July 1997 and closed its offices without prior warning, leaving a great number of upset customers behind.

There is a freeware FOSSIL driver called NetFoss which allows PCBoard to be accessible via telnet under Windows.

There was also a DOS-based PCBoard add-on "PCB Internet Collection" which allowed telnet access by installing a (DOS-only) packet driver.

Another PPE De-compiler was PPLDecompiler (PPLD) written by CHiCKEN, a member of the "Swiss Coding Division" of the group Electronic Rats (EcR).

Metaworlds was an attempt by CDC to establish a BBS-like environment on the Internet, basically a closed mailbox in HTML format online.

Metaworlds supported the parallel operation with the standard ANSI based PCBoard BBS software and used Microsoft SQL Server as underlying database.