Running batch file from NSIS

i am using:

ExpandEnvStrings $0 %COMSPEC%
ExecWait '"$0" /C "c:\path\to\batch.cmd" "quoted param" normalparam "c:\last param"'

To run a batch file from NSIS.
What are my options to know if the batch.cmd failed or succeed?
Is there an way to get CMD errorlevel parameter after the batch call in NSIS?

Thanks

is seems that when i m running
ExecWait '"$INSTDIR\someprogram.exe"' $0

with a batch file the value $0 is always == 1

What i meant is actually that the $0 doesn't return the %errorlevel

ExecWait reports the process (cmd.exe for batch files) exit code.

Batch files have broken exit code handling, to fix it, as the LAST line in your batchfile use

@%COMSPEC% /C exit %errorlevel% >nul

See also:

Thanks a lot!!!
i will try it, though i found a work around - writing the errorlevel to a file and NSIS read the result.