oh yes and a quick way of checking if this is a bigger problem than just missing plugin.dll is run the recast.exe also in one of the zipt files ,if it doesnt run then i pretty much have the problem pinned down because i build that recast.exe myself so it could be c++ compiler setting/runtime library's related then. anyway i realy hope its just a matter of forget to copy dll file to plugin folder .i could be to blame here not writing in the readme file where that plugin dll is.