Installing .reg file

[Xanadada]

I have tried to use "Exec "regedit /s file.reg" command, but no action. I dont want to use ExecShell "" "file.reg" because it ask if user install the reg in registry or not.

I gave a shot to reg2nsis converter, but unfortunaly my reg file is either too complex or some how broken and got error when trying to compile installer pack. And this is subject that cannot made anything.