Heey so I have already bought arch coin with my bittrex account and used my windows wallet.
How does it works if I Want to buy more?
If I generate a new payment adress and fill in my arch coin adress I already used on the first purchased things go wrong?
Go to the Crowdsale site, scroll down the list until you see your wallet address. To the left of your wallet address is a BTC deposit address, copy this address (right click) and then use it to deposit BTC from Bittrex, Mintpal, Cryptsy or any other BTC account you may have.
Even if you generate a new BTC deposit address using the same wallet address as you did previously, and deposit to it, once the ICO is complete, you will recieve your coins. All deposits and coin payments are based on the ARCH wallet address you use to generate the BTC deposit address.