Hi, I had already tried that too, same error. I've since setup a clean Windows XP machine, installed the latest Wireshark and ZB to attempt the documented Wireshark debug by executing the instructions in the ldbg.bat file: C:\Program Files\Wireshark>"C:\Program Files\Wireshark\ldbg.bat" C:\Program Files\Wireshark>set ZBS=C:\ZeroBraneStudio C:\Program Files\Wireshark>set LUA_PATH=.\?.lua;C:\ZeroBraneStudio\lualibs/?/?.lua;C:\ZeroBraneStudio\lualibs/?.lua C:\Program Files\Wireshark>set LUA_CPATH=C:\ZeroBraneStudio\bin/?.dll;C:\ZeroBraneStudio\bin/clibs/?.dll C:\Program Files\Wireshark>tshark -X lua_script:test.lua Then tshark crashes. If I rename the lua51.dll in the ZB\bin folder & run the script I get a dialogue box from tshark complaining that lua51.dll can't be found so I am presuming Wireshark was built against Lua 5.1. If I force the 5.2 libs I get this: C:\Program Files\Wireshark>"C:\Program Files\Wireshark\ldbg.bat" C:\Program Files\Wireshark>set ZBS=C:\ZeroBraneStudio C:\Program Files\Wireshark>set LUA_PATH=.\?.lua;C:\ZeroBraneStudio\lualibs/?/?.lua;C:\ZeroBraneStudio\lualibs/?.lua C:\Program Files\Wireshark>set LUA_CPATH=C:\ZeroBraneStudio\bin/?.dll;C:\ZeroBraneStudio\bin/clibs52/?.dll C:\Program Files\Wireshark>tshark -X lua_script:test.lua tshark: Lua: Error during loading: C:\ZeroBraneStudio\lualibs/mobdebug/mobdebug.lua:139: bad argument #1 to 'pairs' (table expected, got function) Capturing on 'Local Area Connection 2' There must be a step I'm missing somewhere to get this working. Regards, Steve -----Original Message----- From: zerobrane-bounce@xxxxxxxxxxxxx [mailto:zerobrane-bounce@xxxxxxxxxxxxx] On Behalf Of Paul K Sent: 09 September 2014 18:30 To: zerobrane@xxxxxxxxxxxxx Subject: [ZeroBrane Studio] Re: error loading module 'socket.core' Hi Steve, > ZBS=C:\Program Files (x86)\ZeroBrane > LUA_CPATH=C:\Program Files (x86)\ZeroBrane/bin/?.dll;C:\Program Files > (x86)\ZeroBrane/bin/clibs/?.dll > I get: > Failed to load file : error loading module ‘socket.core’ from file > “C:\Program Files (x86)\ZeroBrane/bin/clibs/socket\core.dll”:The specified > module could not be found. I think you are loading Lua 5.1 modules to use with Lua 5.2 and this is causing the error you see. Try changing LUA_CPATH to C:\Program Files (x86)\ZeroBrane/bin/?.dll;C:\Program Files (x86)\ZeroBrane/bin/clibs52/?.dll (note using clibs52 instead of clibs). If that fixes the issue for you, I'll update the documentation... Paul.