To use pcAnywhere, it must be installed on both PCs - the one you want to connect to and the one you are connecting from. The PC that you want to connect to is called the "Host". On this PC, you need to install pcAnywhere, then open the program and click the "Hosts" button. You need to know how to set the host connection up properly - how you will connect - i.e., through the Internet, dialup to a modem, etc. - and what security settings you want to use. Then, you have to start the host program so that it waits for your other PC to connect to it.
The PC that you will connect from is called the "Remote". Once pcAnywhere is installed on the host and waiting, then you open pcAnywhere on the remote machine, click the "Remotes" button andset up a remote connection using the same parameters (i.e., dialup, Internet, etc.) as you used on the host. You need to read the documentation that comes with the program carefully to set all this up properly before you will be able to connect.Hope this helps!