I just reinstall TMS VCM UI Pack (10.7.4.1 / setup.exe dated march 15th).
No TMSVCLUIPackDXE14Group.GroupProj at all (i checked my full HD).
No *.GroupProj files inside the "tmssoftware\registred\TMS VCL UI" Pack folder
Of course, I have a TMS VCL UI Pack folder with files dated on march 15th