|The Script Service supports
two modes herein called service and application mode:
Service mode is more useful but it is appropriate for
Windows NT/2000 systems. Script Service is registered as system
service and can be started from the control panel.
Application mode is supported mostly for development
convenience and to allow usage on Windows 98 and some applications of
personal interest to the developer (maintenance of the machine for
example). It is not recommended to use it in this mode with IIS!
By default the setup will register the exe in Application mode.
To reconfigure it to run as service open a command prompt window and
or go to its directory and type just:
If you need to unregister it type scpsvc.exe /UnregServer (this
is for both modes). If you have registered it as service and you want
to reregister it in application mode - unregister it and then type scpsvc.exe
/RegServer. Note that you may need to restart the machine when
unregistering from service mode! If the error occurs (service marked
for deletion) restart the machine to allow the service manager to
update its db.
IIS notes: If you have it in application mode any
request to the Script Service from IIS will start it in the IIS
context. Therefore if you have one copy started manually a second copy
will be started. The pages running under IIS will refer its copy, the
applications working on your desktop (for example ASP pages executed
with ALP) will refer to
the copy running on your desktop. This effect could be useful
sometimes, but in most cases it could be a source for mistakes. In service
mode only one copy will be started and both desktop and IIS
applications will refer to it (this seems to be desired in most
If you need more convenience application mode will offer you some
additional opportunities. It could be very convenient if you are
developing some ASP pages with ALP. But moving them to IIS could be
cause confusions (you will have two separate copies running probably
executing different versions of the script). Thus we strongly
recommend if you are developing on the same machine that runs your
public WEB server to install Script Service in service mode in order
to avoid confusions.
Also running in application mode means the service will not start
automatically when the system starts, while in service mode it will
start during the OS startup process and any scheduled tasks
implemented/handled by the script will have chance to run.
The script you are writing for the Script Service may cause
errors as any other script. They are reported in the ReportFile
and also (if not disabled) in the application event log. In
application mode the last message or error is displayed in the
application window. If you receive errors without any additional
information - check if the script file is specified correctly.