Asset Manager Retrieval Advice

I am in the process of completing a new asset management system for our company, and now I am looking for some advice on how to retreive info from the users computers and keep it updated (roughly 200 and growing)

I am aware of WMI, and am looking into it now, but whats the best practice.

1. Have a VB app where the user runs weekly to scan the PC and update the DB.
2. A script which runs upon logging onto the network, which runs WMI and updates the DB.
3. A web page (.NET) which they visit weekly to perform the WMI task and update the DB.

We are runing a Windows network with Active Directory if that helps.

Any ideas would be great. Thanks...

A logon script would be useful as it won't interfere with any other processing that may occur on their system at the time. #1 would feel like 'interference' and slow down their machine, #3 just won't happen. Nobody wants to take the time out to do something for your convenience since it doesn't benefit them in any way.

Thats the way we were leaning anyway, a script would run when the computer logs onto the network and pools the information and then posts / updates the SQL Server DB with its specs.

Does anyone have any tutorials on accessing SQL Server through a console / script. I am not even sure where to start with regards to that...

How's your VBScript? You can create your scripts with JavaScript, VBScript, or make it a .BATch file or an EXE.