because I install an other verison of this utility,I uninstall that verison,the problem is disappear.
can some dll is override?

I use Nokia_Multimedia_Converter v2.0 in console mode,but it cann't work,error is "SetConversionParameters Failed!";
I use it like this:
c:\nokia tool\mmconvertercon -i c:\1.wav -o c:\2.amr -a amr...