One note I found about this process: the above can not be completed on SAPGUI SP4 in 64-bit. The SapScript Legacy editor can't see the 64-bit install. Unless there is something, I am missing in the install parameters. You get a screen when attempting that says.
The reboot is irrelevant. I attempted this on a few VMs. The only way to get the legacy editor to install is if you have the 32-bit GUI installed. At least that I found. However, I am delighted to have found this document to identify this.