How to pause the installer till finishing command execution?

[ilaiyaraja]

I have executed lauch4j command in Nsis script.It take some time to complete while executing same in command in command prompt.
same way i need to execute this command running exe.
I have tried following commands in NSIS

nsExec::Exec
ExecWait

Ant other option is available in NSIS?

[MSG]

Maybe ExecWait with child processes? http://nsis.sourceforge.net/ExecWait...th_Job_Objects