Loop
Set Variable %IQ_FILES_INUSE% to Check In-use Folder Tree
"%_SB_INSTALLDIR%\*.*"
If %IQ_FILES_INUSE Equals "1" Then
Message Box "There are programs or files in-use in the destinat..." --
"Files In-Use"
If %_SB_RETURN% Equals "IDCANCEL" Then

(I WANT TO ABORT THE INSTALLATION HERE)


ElseIf %_SB_RETURN% Equals "IDRETRY" Then
Cycle Loop
End
End
End
Break Loop
End