TeamViewer 2.x uses the DynGate Router to pass through firewalls.
DynGate is usually downloaded and installed automatically with your first TeamViewer start. The manual download is only required if automatic downloads fail for any reason.
Owners of older license keys that are not
compatible with TeamViewer 2.0 may download
the older release 1.x with the links below.
Please note that DynGate 1.x must also be
manually downloaded as the automatic
download will always fetch the newest
version from the server.