hhmm .. PureExtacy that's right. I've been worked using M$ for more than 7 years and i thought it was a good OS. Since *Nix had launched in here ( in my country ) everything changed alot, more ppl use Nix as their OS , but the problem , most of their clients not familiar using the Nix .. Nix is great ( my opinion ) and it's open source makes us can do whatever we want.
But Once again we found the problem in Sosialiaze with the user .. fiiuuhh .. more job. So what i can do now is only put the Nix as one of the server ( in my office ) and let the clients use the M$. Any way , thanks for the link , that's nice mate.

-Shad