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Delphi 2009: How to communicate between Windows service & desktop application under Vista?
I have a server running as a Windows service. To control the service and to display it's state I have an application running as a tray icon. I would like to pass data (log strings) from the service to the application.
What's the best way to do this?
Use any kind of SOAP implementation, it shoudl be flexible enough to provide you with certain extensibility for the future and to provide you with the ability to connect from other location/applications.
Webservices are a good option.
There are many options for interprocess communication. http://en.wikipedia.org/wiki/Inter-process_communication
I tend to use sockets, with HTTP and HTML. This way I may use a browser to control my service. Even remotely.
The best approach here is IPC based on Named Pipes. TCP/IP is also a very good solution but it is slower than Named Pipes. Named Pipes also work over computer in a LAN.
You can use my implementation which is packet oriented and hides all technical details from you. Download is available at: http://www.cromis.net/blog/downloads/cromis-ipc