Back in the late 90's we used it on our startup, several of companies at the time were trying the luck on Tcl based application servers, AOLServer being the most well known.
There was Vignette, and we at Intervento had our Safelayer product, loosely based on AOLServer.
Apache and IIS plugins for hosting Tcl interpreter, running on Aix, HP-UX, Solaris, Red-Hat Linux, Windows 2000/NT, with support for Oracle, Informix, DB2, Sybase SQL Server, Microsoft SQL Server, Access (only for test purposes).
Development environment was based on Emacs, eventually there was one written in Visual Basic specifically for the product, with project templates and other kinds of goodies.
However we eventually hit the limits of using Tcl, and having to rewrite parts of the platform in C.
As it was, being a gold MSFT partner gave us access to .NET before it was announced to the world, and a plan to rewrite our product into C# took place.
With the learnings of these experiences, and customisations done at client sites, the founders eventually moved on and created one of the best products for no code development still going strong nowadays, OutSystems.
AOLServer (now Naviserver again) is still the base for the largest open-source project management system: ]project-open[ (https://www.project-open.com/)
There was Vignette, and we at Intervento had our Safelayer product, loosely based on AOLServer.
Apache and IIS plugins for hosting Tcl interpreter, running on Aix, HP-UX, Solaris, Red-Hat Linux, Windows 2000/NT, with support for Oracle, Informix, DB2, Sybase SQL Server, Microsoft SQL Server, Access (only for test purposes).
Development environment was based on Emacs, eventually there was one written in Visual Basic specifically for the product, with project templates and other kinds of goodies.
However we eventually hit the limits of using Tcl, and having to rewrite parts of the platform in C.
As it was, being a gold MSFT partner gave us access to .NET before it was announced to the world, and a plan to rewrite our product into C# took place.
With the learnings of these experiences, and customisations done at client sites, the founders eventually moved on and created one of the best products for no code development still going strong nowadays, OutSystems.
Never used Tcl again since those days.