EasyWMA converter is the ideal tool which allows you to convert your MP3, MP2 and WAV files to WMA formats. The tool is integrated with the Windows Shell and you can directly start conversion by right-click on the selected audio files and selecting "Convert to WMA" from Windows explorer. The tool also support batch conversion mode and you can add multiple audio files and convert them in a batch. This program costs $14.95 to register and you can evaluate the full function evaluation copy for 15 days.