Hello there, I've made a mess of my windows 7 x64 installation. I'm totally unable to install v4 of Dvblink because the installer keeps saying that "another version is already installed, please uninstall first". I can't find any leftover reg key or file related to dvblink v3. I've seen other posts about some keys to delete, but they aren't on my computer anymore. How does V4 check for V3 leftovers? Help plz, thanks!
It looks like you had already v4 installed on this machine. This is what installer complains about (not about version 3). You may try looking for "B8DC6C33-ADF5-47EC-9116-705C0C8F408C" in registry - this is product code of DVBLink Server v4.
You can also try running one by one msiexec /i "dvblink_server.msi" REINSTALL=ALL REINSTALLMODE=vamus msiexec /i "dvblink_tvsource.msi" REINSTALL=ALL REINSTALLMODE=vamus msiexec /i "dvblink_connect_server.msi" REINSTALL=ALL REINSTALLMODE=vamus