Migration of a plugin dissector to 64-bit

My task is to create a dissector for my own protocol, implemented as a plugin, compiled to 64-bit architecture. I've been struggling with some errors, and I need some help to complete my work:

1) To successfully build my dissector, do I have to compile the whole Wireshark, or can I just compile my plugin as a dll, and add it to the plugins directory of the downloaded version of WS?

2)I don't know how makefiles work, and I'm using a Windows7-64bit machine for this project. Can I compile my plugin with Visual Studio, as a standard project, or do I have to deal with these makefiles?

3)If I can use only Visual Studio, is it possible to use the 2013 vesion, or WS doesn't support it yet, and I have to use a previous version?

4)once the project is succesfully built to target a 32-bit platform the only thing that I have to do is to change the "Project properties" in order to target a 64-bit platform? Or is there anything else that should be done to produce a 64-bit dissector?

5)I tried to build my plugin with VS2013, and I have this kind of error: "error LNK2001: unresolved external symbol __ imp _ find _dissector". Is this related to the fact that I am building only the plugin without the whole WS project? Or maybe is that problem about the migration 32->64? Or maybe something else?

Thanks a lot in advance for the help.