windows: uninstall TAP
Should we uninstall TAP as part of the riseupvpn uninstall? What if TAP was already installed in the system as part of openvpn? Can we detect if it was installed by us or not?
I thought about using /D=$INSTDIR/TAP-Windows
to install TAP inside our own installation path, but I think TAP also installs some drivers globally, isn't it? And anyway somehow /D option doesn't work in my tests.
http://nsis.sourceforge.net/Docs/Chapter3.html