SC

Create an interactive own-process service with SC CREATE (cmd.exe or regedit.exe) and start it with SC start.

Services ?creator?

Caution: creating and starting services needs admin rights.

SC CREATE SysCmdY binPath="cmd.exe /k start" type=own type=interact
SC start SysCmdY ***

SC CREATE SysCmdX binPath= "regedit.exe" type= own type= interact
SC start SysCmdX ***

type=own is own-process. type=interact is interactive with the desktop.