The download button for Superstar Online takes you to a page where you have to click a link for an FTP download. I clicked it and kept getting timeout messages, so it doesn't seem to be very reliable, or it could be that it's only available to users in the Philippines and I'm in the UK.
The file is called
ssfullinstaller.exe. Open Windows Explorer, right-click the file you downloaded and select Rename. Remove the
.CRDOWNLOAD.file extension from the end of the filename and then try running it. If it doesn't run and gives an error message, you'll have to download it again or contact their support line:
https://account.e-games.com.ph/Conte...ent/Login.aspx