Thanks for the response! If you could post some of the URL's that would be great! I've searched many different times and didn't find anything that I thought was useful. It is entirely possible that I didn't search with the right keywords or that I just overlooked articles with the relevant information. Thanks again!

Thanks for the reply Chris! After seeing the great (and daunting) data that Ernest posted, I am beginning to think you're right. I was hoping for something that I could do in a couple of days (it doesn't have to be pretty, it just needs to work) but this has the appearance of a full fledged, several weeks project. More time than I want to put in, I think.

Wow!!! That looks like fun. Thanks for the response. I think you've given me enough to think about as to whether I want to continue on with this or to try and find a program that does what I need (or at least close to what I need). At least now, if I look at one of the files, I should have a better idea of what is going on. Thanks again!

Does anyone know what the format of the Outlook Express storage file is or where to find the format for it? My problem in a nutshell is this: I want to be able to filter out all of the spam emails from my Hotmail accounts. I've looked around and tried many of the shareware/trialware programs out there that claim to do this, but have had no luck with them working. So, instead of trying to find a program that does what I want, I'll have to (try) write one instead. The only problem is that I don't know the format of the DBX files that Outlook Express is using. Before I spend a lot of time trying to figure out the format by example, I thought I'd see if anyone here knows what it is of has seen it described anywhere. What would be even better is if someone has already written a class that handles this (though I'm not too optomistic about that). So, can anyone help me with this? Thanks in advance for any help or pointers! Mike