>>
>>A service is basicly a program that runs when you boot your machine.
>>If you want to see a few of them...
>>
>>Start - Programs - Administrative Tools - Services
>>
>>* You have to have NT4, 2000, or XP to do this. *
>>
>>Keep in mind if you do this, you wont have an interface to your program (but it sounds like you don't need one anyway)
>>
>>There are ways to do this yourself - but if you don't mind blowing 80 bucks..take a look at this...
>>http://www.eltima.com/products/screenshots/application-as-service
>>
>>...or if yer cheap like me, you'll want to goto DOS and use the INSTSRV command...
>>
>>There is a good example of how to do this here....
>>http://www.geocities.com/lwddemon/setiservice/
>>
>>...and if you ever wanted to know what all those darn services do... take a look at this...
>>http://www.blackviper.com/WIN2K/servicecfg.htm
>
>A quick question, please. You said the service cannot have an visual interface. My program actually does have a small form where user can specify the timer interval to check for input files. So you are saying that even with this small interface I would not be able to make it into a service?

The service cannot have a visual interface - but you can work around the problem.
Keep the timer-interval value in a table - have the service read the value from the table.
Then, write another tiny application that allows the user to change the value in the table.