Here's a warning to all who might consider the purchase of this "tool": its pure fraud, a completely useless chunk of bits and bytes.
1) there is no such thing as "upsamling". You can downsample an audio file from 44.1kHz to whatever is less, but you CAN NOT effectively upsample anything from a lower sample rate to 44.1kHz!
The only thing changing is the file size! Any sample at 22.5kHz will not use a wider range than 22.5kHz, even when converted to 44.1kHz. The gained headroom will remain empty.
Example: putting a brick from a shoebox into a ship container will be a complete waste of space. The same thing happens when you "upsample" a file from a lower to a higher sample rate.
2) conversion from MONO to STEREO is IMPOSSIBLE. The converted file will have two identical mono tracks effectively resulting in a MONO file. The same happens when a mono file is played through a stereo amplifier - it simply plays back the same waveform on both speakers.
AGAIN: Do NOT buy this software, it's an outrage by Perfect Flight to offer such a product to the community.