I am looking for something that will allow me to tunnel through the company firewall (not against policy) to allow connections to a Windows 2012 server. I don’t have any access to/control over the building firewall (some flavor of Cisco, not exactly sure what) so I will have to use a brokered VPN with an endpoint client on the server. Hamachi would do the trick but there is something that is throttling speeds down to 5-52kbps and that just isn’t working for me. Are there any good replacements that you know of?
Team Viewer has a VPN option, and can be ran via a portable app on a thumbdrive.
I would be curious to see what is causing Hamachi to drop to such low speeds. It really is perfect for what you are doing…and free! My worry is that whatever is causing it for Hamachi will do the same to whatever else you try.
If you use Hamachi outside of your work network does it still go super slow?
You could also consider wippien, It is a chat client that features VPN brokering, as long as access to the wippien broker is avail it should connect securely.
If you have full control over the client(s) and they aren’t behind a firewall, you can just turn on Teredo on both sides and connect to it with IPv6. Just type this at a command prompt on both sides:
netsh i ipv6 set teredo enterpriseclient
Boom, no more firewall.
The other simple option is to get a VPS somewhere and set up OpenVPN on both sides. Then have the VPS end of the OpenVPN tunnel forward traffic on whatever service port you want to the server behind the firewall.
I’ve only used it between house and office.
When you install the NeoRouter server, you need to make sure a listening port (default 32976/tcp) can be access from the Internet.
Although I could set up the server at home I guess where I control everything.
I have full control over both clients but they are behind firewalls on both ends. 
The thing I like about Hamachi is that connection between endpoints are brokered so I don’t need to beg the building’s computer guy (offspring of the owner) to set up port forwarding or any other anythings to get the VPN to work. Install client on the work machine, install client on the home machine, instant connection.
Neorouter also has their Mesh service where they host the server.
Oooo… now that is more like it.