I have a VFP app which is putting a text file onto a PDA. A VB.NET app running on the pda uses that file.

At the moment the user of the .NET app on the pda hits a command button to tell the app that a new text file has arrived to be dealt with.

I would like the app to learn this with no user interaction.

I could have a timer on the app look for the existence of the new file in a certain directory but I'm sure that there must be a better way, either by the VFP app "telling" the .NET app directly or by the .NET app binding to some event in the file system that tells it that a new file has been created.

Any ideas.

PS. I am a .NET "newbie"