Simple Windows Aplication

Hello, I need to be developed an simple but beautiful Windows app. This will contain: 1) Login Page with RecaptchaV2: This page will do an JSON request to my backend. If success, it will return the PHPSESSID token that will be stored. 2) After Login, there will be an page with name of Manage Accounts, where user will enter username and password. This will do an JSON request {"username":"","password":"","PHPSESSID":""} to my backend that can return success (the username and password will be stored in an text file as JSON, example: [{"username":"myusername","password":"mypassword","status":"1"}]) or can return fail (it will show the message that contain at the JSON response). This page also should contain an table with the stored accounts which will show the username, password and current status in text (i will send which each code represents). In this manage account should be an button to remove the account. 3) After that user can click on button named Start that will execute an executable file that will be available at the same folder of this app. The button should change to Stop and user should not be able anymore to add/remove accounts until stop the executable. When click on Stop, the executable should be killed and the accounts can be managed again. 4) There should be an button to Logout. When click on it executable will stop (if any running), the PHPSESSID and stored accounts will be purged. Some other details can appear during the development.