Because the program does not recompress the wmv files, the audio and video of the output wmv file do not have any quality loss. And the conversion speed is extremely fast. It also supports to drag and drop files. Only the WMV files, which have same frame rate, frame size, video and audio codec parameters, can be joined. WMV Joiner supports multi-languages as possible as it can, and includes 32-bit and 64-bit versions.
64 MB RAM