If the program GatesCust was installed before and you want to save all information about orders, clients, doors, users, price lists, etc. after the upgrading you need to download all necessary upgrading files from the site.
ATTENTION: The upgrading process of the server part («The Server») must be performed in several stages.
For example, you have the program GatesCust in 1st version (the number of version you can see in the main window of the program, item of the main menu – «The User» – «The Version») and you need to upgrade it to 3rd version. In this case you need to upgrade the program to 2nd version and then to 3rd version. You can find the detailed description of the upgrading process in the file readme.txt of the corresponding upgrading version.