Dear,

Another problem can be the way of calling your shell (= you will wait for
completion of installing package)
Our suggestion is:
code:
IF (KeyExist("HKCR\Avg.kernel") = 1)
  ? "Installing Avg ...."
  IF (SubStr(@scriptdir,len(@scriptdir),1) <> "\")
    $cmd=@scriptdir+"\"
  ELSE
    $cmd=@scriptdir
  ENDIF
  IF (Exist($cmd+"avg.exe") = 1)
    $cmd=$cmd+"avg.exe /s"
    SHELL '%comspec% /c start /wait '+$cmd
    ? "completed."
  ELSE
    ? "Warning. missing AVG file."
  ENDIF
ENDIF
greetings.

btw:
- in kixtart 4.x releases you can use abbreviations for HIVE registry keys.
- it can be possible that "@scriptdir" is returning an unexpected value. f.e.
with or without a "\" symbol.
- it is possible that your package creates another task, which will result
in a direct completion of installation process. to prevent it we are using
the "start /wait" part.
_________________________
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