russian: 
В ОС Windows существует проблема сохранения учетных данных для подключения по RDP (mstsc.exe)
Данная программа позволяет определить сетевые алиасы для хостов и связь с учетными данными,
а также предоставляет масксимально удобный способ сохранения учетных данных и настройки 
локальных записей dns (%windir%/system32/drivers/etc/hosts)
english:
Windows has a problem saving RDP connection credentials (mstsc.exe)
This program allows you to define network aliases for hosts and communication with credentials,
and provides a maximally convenient way to save credentials and settings
local dns records (% windir %/system32/drivers/etc/hosts)

build instruction:
    1. check installed NET SDK 10
    2. clone this repo
    3. open console in repo folder
    4. run `dotnet build -c release`
    5. after build if bin\release\net10.0-windows you find exe-file
    6. start it and enjoy!

example: 
if you have pc1 
and every time rdp request password when 
    1. add record pc1 from Servers menu
    2. optional add entry to hosts (some host alias as added in 1 and real ip) 
    if host ip or host name diff from dns 
    3. add login via cmdkey from main menu
    4. test menu item Servers/Connect

hint: rdp toggle fullscrean hostkeys CTRL+ALT+BREAK

2026-01-01:

add vpn menu (connect, disconnect, soft kill)
first argument is path to executable client file
second argumnet is a command for menu option

you can see actual command key in pwsh via & 'C:\Program Files\OpenVPN\bin\openvpn-gui.exe' --help
after click OK value save to config.json in application folder.

Good luck!