The most probable choice for a wve to wmv conversion seems to be the export of Wondershare Video Editor projects (.wve) as Windows Media Video files (.wmv), which can be done using the default export function. Wondershare also offers trial version, so it may be worthwhile to check the program if you are attempting this conversion.
Interestingly enough, another program called Cyberlink PowerDirector uses same wve extension for its own projects that also can be exported to WMV. But that is completely different conversion, just using same extensions.