WIMOVAC currently gives a firm foundation for future modelling work. However further work on model dialogs for a more detailed treatment of soil processes including decomposition, nitrogen cycling and mineralisation is indicated. Attention to herbivory and refinement of links between ecophysical and ecosystem process is also required. Although WIMOVAC can be run on any operating system which supports standard windows executable files such as Windows NT, Windows for Workgroups and IBM’s OS/2, a possible limitation of WIMOVAC is that its code is tied to Visual Basic and the Windows system. WIMOVAC however has been created so that the functions which make up the modelling algorithms can be isolated and transferred to other environments. Furthermore it is possible to compile numerical routines written in other languages, such as ANSI C and ANSI FORTRAN into a dynamic link library (DLL) which may be used without source code translation with Visual Basic and WIMOVAC.