Visual Studio初始化工具箱原理

Question

Visual Studio 怎样初始化工具箱的呢？我看了一下工具箱（WF）控件的dll都放在GAC中,我想做一个WF流程设计器也动态加载控件该怎么做呢？

我的想法是吧要显示的空间通过配置文件配置如下：

<?xml version="1.0" encoding="utf-8" ?>
<BoxCategoryItems>
  <BoxCategory name="活动">
    <Subitem>WriteLine</Subitem>
    <Subitem>Sequence</Subitem>
    <Subitem>Assign</Subitem>
    <Subitem>Delay</Subitem>
    <Subitem>If</Subitem>
    <Subitem>ForEach</Subitem>
    <Subitem>Switch</Subitem>
    <Subitem>While</Subitem>
    <Subitem>DoWhile</Subitem>
    <Subitem>Parallel</Subitem>
    <Subitem>Pick</Subitem>
    <Subitem>PickBranch</Subitem>
  </BoxCategory>
  <BoxCategory name="流程图">
    <Subitem>FlowChart</Subitem>
    <Subitem>FlowDecision</Subitem>
    <Subitem>FlowSwitch</Subitem>
  </BoxCategory>
</BoxCategoryItems>