If you are using a non-Japanese operating system, an application called LEProc.exe will launch to unzip downloaded files to avoid text from being garbled (""mojibake"").
When your system asks you whether to run LEProc.exe, please select OK.
*The files will be unzipped in a Japanese environment on the terminal.
Please note that when unzipping games via LEProc.exe, even after the progress reaches 100%, it may take some extra time for the unzipping to be completed, so please do not close NEST.