I can't install the e-Declarations Desktop 10.0.0 application

Today I wanted to install the e-Deklaracje Desktop 10.0.0 application, the latest version of which can be found at finance.mf.gov.pl. I have the latest versions of Adobe AIR (28.0.0.127) and Adobe Acrobat Reader DC (18.009.20050). When I try to install automatically from the MF website, after clicking 'Install' I am constantly being shown the message: 'Installation in progress. Please wait for the installer to finish '- and so for several hours. The problem occurs regardless of the browser - I tried on Internet Explorer, Firefox, Opera and Chrome. However, when I want to install the application manually, after downloading the e-DeklaracjeDesktop.air file and running it, the following message appears: 'An error has occurred. The application cannot be installed due to damage to the installer file. Try to get a new installer file from the author of the application '. The operating system is Windows 7 Home Premium (x64).

How to solve this problem?

Hello. https://forum.dobreprogramy.pl/t/problem-z-in...-aplikacji-e-deklaracje-desktop-10-0-0/557059

@piterrr_ , I just did it and the same problem. Somewhere here I read that the problem concerns 64-bit systems, but I did not find out how to solve it

Need to try on a 32 bit system?

@piterrr_ , no way. On the computer I have, I can't make any changes to the software, especially on the system. I need a way to run the e-Declaration on W7 x64.