Thank you. It worked. It gave me an error that the Tee9QR5D21.otares file was missing. I copied the Tee9QR5D20.otares file from the source code and it worked.
Perhaps you should include it in your distribution package

My setup is Delphi XE7, Latest QR and just bought TEE Vcl 2015 (with source) Installation of TEE 2015 had the following problems: a) after reaching almost the end "TEEInstall" hanged. I could see in the task manager that both the installer and TEEInstall.exe were running, but there was no response. ...