can not open nrf.exe

[zcmm]

DFU create my image,i have a question as follow: i can open nrf.exe（By default, the tool is located in the C:\Program Files\Nordic Semiconductor\Master Control Panel\3.9.06\nrf\ folder. Run nrf.exe ）,after it will atuo close.So i can not see the usage instructions and create my dfu image.

who can tell me why？

thanks

[Hung Bui]

@zcmm: nrf.exe is a command line program. You should open it in the DOS command line window. Go to run type: "cmd" and press Enter.

[zcmm]

i try,but i can't open.it is my operate step as follow: Window7 systems,MCP is located in the C:\Program Files\Nordic Semiconductor\Master Control Panel\3.9.0.6\nrf\ .Opening "win+R" ,input "command"--then at the command.com input"C:\Program Files\Nordic Semiconductor\Master Control Panel\3.9.0.6\nrf\nrf.exe dfu genpkg",or open command prompt:input"C:\Program Files\Nordic Semiconductor\Master Control Panel\3.9.0.6\nrf\nrf.exe dfu genpkg",they will note:"C:\Program Files"is not Internal or external command,Nor is it a running program.Can you tell me concrete steps?