These are the compulsory files to built a component :
-admin side
1. component_name.xml
2. install.component_name.php
3. uninstall.component_name.php
4. toolbar.component_name.php
5. uninstall.component_name.html.php
6. admin.component_name.php
7. admin.component_name.html.php
8. component_name.class.php ( if you need)
-front
1.component_name.php
2.component_name.html.php
:Extra files are added depends on your need.
Finally make a zip file for all.
