Any pointers? The ActiveState Perl Dev Kit, containing the PerlNET compiler seems to be well and kicking. I guess you mean the Visual Studio plugin that they used to have, but that's not really related. It was just an extension for the Visual Studio IDE.

BTW, ActiveState PerlNET does NOT compile Perl5 to the .Net bytecode. It just packs the Perl sources to an EXE or DLL and provides the linking between .Net bytecode and Perl , but the Perl code is still compiled and executed by the good old perl engine.