Audit MS CRM 4.0 Record Changes

It is common requirements to audit changes on certain entities on MS CRM 4.0. Unfortunately there is not built-in functionality to do so shipped out of the box. The best solution to solve this issue is to build a plug-in to take care of auditing changes. One of the challenges I faced is: How to implement this plug-in in generic away? So when my client ask me to audit a new entity, I will be ready for that with no Development effort.
The best solution I found to solve the issue is to build a generic entity to hold on your audited information. This entity should be generic enough to hold any kind of info you need…
I found a good plugin on internet and I used it.. It is pretty good to audit the chanag4es on CRM data. Please refer to the below link: