The installation of TMS Flexcel fails on Delphi 1.3 Rio on my system (Windows 7). I have a full version of Delphi 10.3 Rio Enterprise, not a trial.
This is the error log:
msbuild.exe "d:\delphi\xt_lib_tmsflexcel\Packages\dRio\FlexCel_Core.dproj" "/target:Make" "/p:config=Debug" "/p:Platform=Win32" "/p:UnitSearchPath=C:\Program Files (x86)\Embarcadero\Studio\20.0\lib\Win32\release" "/p:DelphiLibraryPath=C:\Program Files (x86)\Embarcadero\Studio\20.0\lib\Win32\release" "/p:IncludePath=C:\Program Files (x86)\Embarcadero\Studio\20.0\lib\Win32\release"
'msbuild.exe' is not recognized as an internal or external command,
operable program or batch file.