Originally posted by Mulugeta Maru:
Thank you all. For some one like me an open source will provide me to learn and enhance the software without restirictions.
Mulugeta
Be careful. Although something is Open Source, it does not always mean you can freely modify the source code. There are several Open Source licenses. You need to read the agreement carefully and make sure you are able to modify source code.
Most licesnses won't restrict this, and a lot of them will allow it as long as you submit the modifications to the original developers.