I've downloaded those apps
https://www.renesas.com/us/en/software-tool/simulator-debugger-r32c-series
The HEW installed without any issue, but the Simulator won't start the installer (pdiodllv200_e.exe). Windows tells:
"This app can't run on your pc"
No matter what i tried i cannot get rid of the message.
It sounds like possibly the simulator is 16-bit (or perhaps at least the installer) and your machine is 64-bit, based on the error msg. You can try this method, I have had moderate luck with 16-bit installers.
techcommunity.microsoft.com/.../1671418
Thank you very much, i'll give it a try. Fortunately this installer is not the simulator as whole but only to extend it.