One second. So what you're saying if I understand you correct is that you've installed Hamachi, yet your computer doesn't show the virtual network adapter?
Basically, if Hamachi installed correctly (and it may require a restart on XP), then it will add a VPN adapter in your list of adapters. Here are my adapters and you can see Hamachi is one of them:
So if you aren't seeing this, then you'll likely have problems connecting to others. You may want to uninstall, and try a fresh install (and try restarting after the installation is complete). By the way, if it does work correctly, you won't need to change adapter priorities. Hamachi now installs in the "correct" relative priority location by default.
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