If you want to use RAW PhotoDesk beyond the 30 day trial period, you must register. A single user license is $19.95.
RAW PhotoDesk is no longer updated, meaning that the program will not read raw files from newer camera models. Also, it may not work with 64-bit Windows versions. The program is still useful for older camera models or use with other file types, like TIFF, PSD, JPEG, etc.