Thanks, but the URL appears to be broken, however. Is your source code somehow available, we are a non-commercial open source project too.

So this means my C++ application cannot use the SDK to switch the channel of an existing TS3 client? I can to this iwth the URL `ts3server://foo.org&port=99ff&channel=bar` syntax, but the problem is...

Upfront: I have never used the SDK

I am a co-developer of a flight simulation application running on Linux, Max, and Win (x86 and x64). I want to use TS a voice server for ATC communication....

Good hint, thanks. The second solution I have found is to add QT_QPA_PLATFORM_PLUGIN_PATH only under QtC`s Project Build environment.

Solved.

I run TS3, Qt Creator and Qt 5.5. The QtC installation sets QT_QPA_PLATFORM_PLUGIN_PATH to its corresponding path. This causes Teamspeak 3 (64bit, on Win10) to fail: "This application failed to start...