text editor .net

Below is the screenshot the look and feel of editor [login to view URL] 1. Basic word pad functionality 2. Tabbing 3. When I open html file it should be colorful 4. And when I create new file it should ask html file or txt file when I would select html file text will be colorful 5. It should have opotion password encyrption like if I want I can save file with password which wont able to open through any other editor and when I open on my editor it will ask me password and if password is right it will open fil can pay 30