Opera supports the Netscape plugin API. Opera can be installed on computers where Netscape is not installed and run any plugins that would work with Netscape 4.x. However, trying to install Cycore's Netscape 4-compatible <http://www.cult3d.com/> Cult3D plugin on a computer where Netscape is not installed does not work.
Opera goes to great lengths to be compatible with typical plugin installation routines by mirroring Netscape's folder structure, including a dummy "Netscape.exe" file and setting the
registry keys accordingly on computers where Netscape is not installed.
However, when a plugin installer wants to read out chunks of Netscape's program file before installing anything –
READ C:Program FilesNetscapeProgram Netscape.exe SUCCESS Offset: 5300224 Length: 32768
what CAN Opera do to be compatible? Nothing that makes even remote sense..