@cymbalrare Magento 1 extensions are not compatible with Magento 2 and cannot be installed. You can buy/register Magento 2 extensions on https://marketplace.magento.com/ and they will show up in the component manager.
hey, i am new to Magento and i want to add a Cash on Delivery with specific zip code Extension to my webstore. i have got the extension but i dont know how to install it on the Magento as thereis no magento connect in magento 2 version. they said that we have to do it from terminal but i am using windows 10, can anyone tell me how will i connect to my web server through terminal from windows.