We used filezilla server 0.9.53 for years and recently upgraded to the latest, 1.9.x. The 1.9.x installer included uninstallation of 0.9.53 as an option and we selected it. We were not aware that our remote FTP client software still uses back slashes in its FTP command file paths. With FTP transfers broken between the remote FTP client and filezilla server 1.9.x the only option in the near term was to uninstall 1.9.x and install 0.9.53. We had no copies of the 0.9.53 installer on-hand. Thank you for making a Filezilla server 0.9.53 installer available to the public.
Pros
The installed filezilla server 0.9.53 works just like the original and works with an imported FileZilla Server.XML file.