How to open SAP automatically

Go to folder
Step 1: C:\program files\SAP\FrontEnd\SAPgui
Step 2: There will be a file sapshcut.exe.
Step 3: Create a batch file and put the following in it as contents and execute
start sapshcut.exe -system= -user= -pw=
-client=

How to logon via sapgui without entering u sername and password

sapgui640 from each log to enter a password (to)
1、Start > Run > sapshcut.exe
2、Start > Run > regedit
HKEY_CURRENT_USER \ Software \ SAP \ SAPShortcut \ Security
Change value of EnablePassword from 0 to 1
3, SAP sign of a shortcut.