nssm install saveinvoice "C:\Save-Invoice\getb.bat"
nssm set saveinvoice AppDirectory "C:\Save-Invoice"
nssm set saveinvoice AppParameters server
nssm set saveinvoice DisplayName "Save Invoice Service"
nssm set saveinvoice Start SERVICE_AUTO_START
nssm set saveinvoice Description "Run Save Invoice Service"
nssm start saveinvoice
pause