mission impossible: How to protect a Sql Server (with VB.NET) from somebody who as administrator rights?

From: Pieter (pietercoucke_at_hotmail.com)
Date: 11/03/05 

Date: Thu, 3 Nov 2005 12:26:16 +0100

Hi,

I'm sorry for the probable cross-posting, but I need a solution that can be
either via Sql Server (preferable) or via .NET...

In one of our commpany's we're having a huge problem with a crazy situation:
A lot of people which are working for the company are also supplier to the
company. So they are manage their own delivery's, and their own payments...

They used to have applications in Access, but if they want to (and they do,
hehe) thay can change their own payments they earn. Some of them have even
administration rights, and full access to the Sql Server Database (it
personell etc).

So what I need is:
- make the application in VB.NET, without giving them the source offcourse
- a protection so that, even with administrator rights, they can't change
their own data. I was thinking about something like a checksum-algeorithm.

Does anybody has experience with this? how should I implement an
checksum-algorithm? What other options do I have?

Any help will be really appreciated!!

Thanks a lot in advance,

Pieter

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