/td></tr>
<tr><td class="num">4</td><td>&nbsp;</td><td><a href="http://www.opengl.org/registry/specs/ARB/wgl_buffer_region.txt">ARB_buffer_region</a></td></tr>
<tr><td class="num">5</td><td>&nbsp;</td><td><a href="http://www.opengl.org/registry/specs/KHR/context_flush_control.txt">ARB_context_flush_control</a></td></tr>
<tr><td class="num">6</td><td>&nbsp;</td><td><a href="http://www.opengl.org/registry/specs/ARB/wgl_create_context.txt">ARB_create_context</a></td></tr>
<tr><td class="num">7</td><td>&nbs