This page attempts to describe how the Tcl web browser plugin is designed, mostly from the C level and to some extent the Tcl level.

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The installation structure of the plugin

 +--- /path/to/browserdir/plugins/
   +--- (lib)nptcl<ver>.(so|dll)
   +--- nptcl/
     +--- tclplugin.(so|dll) # a [stardll], may also use regular Tcl installation
     +--- basekit(.exe)      # optional, used by default on unix
     +--- plugin<ver>
       +--- config/
       +--- safetcl/
       +--- utils/
       +--- installed.cfg

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Mozilla Gecko NPAPI reference: [http://developer.mozilla.org/en/docs/Gecko_Plugin_API_Reference]

XPInstall documentation for creating XPIs (plugin delivery): [http://developer.mozilla.org/en/docs/Using_XPInstall_to_Install_Plugins]

Old Netscape docs for NPAPI: [http://devedge-temp.mozilla.org/library/manuals/2002/plugin/1.0/pluginTOC.html]