Hai, i got a solution about this problem.
im using batch command(command prompt).
Heres the code that im using:
START /w sources\FirefoxSetup\setup.exe /S
START /w sources\tfinstall.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-
The underlined text is the location of the program.
START /w means, the next command will be run until the current process terminated (until installation done).
Executable file mostly use silence switch /S (case sensitive) and /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-. It means, it will do silent/unattended installation.
For the .msi file, use silence switch /qb
TIPS: You may use Universal Silent Switch Finder to check which silent switch to use for each application.