对于BHO来说这两种注册有什么区别？

[fool_leave]

要做一个嵌入IE的工具条，在注册文件中加入代码。我看到网上的例子和MSDN中的例子好像有些不同。
一个是
HKLM
{
NoRemove Software
{
NoRemove Microsoft
{
NoRemove 'Internet Explorer'
{
NoRemove Toolbar
{
val '{81FF6F20-5AC6-467B-BF7A-8C320F763AFD}' = b '00'
}
}
}
}
}

另一个是
HKLM {
SOFTWARE {
Microsoft {
Windows {
CurrentVersion {
Explorer {
'Browser Helper Objects' {
ForceRemove {1E1B2879-88FF-11D2-8D96-D7ACAC95951F}
}}}}}}}

应该用哪个？他们的区别是什么？

[firmbird]

前者只是一个普通的工具条按钮插件，后者才是BHO

[firmbird]

BHO对象在浏览器打开的时候会被加载到进程内，前者只是在浏览器的工具条生成一个按钮，就象一个快捷方式一样用来启动相应的程序。

[fool_leave]

但我通过第一种方式也实现了ie工具条呀。

[ACA]

不是按钮，是工具条

[fool_leave]

不是呀.网上下的那个iefavoritemenu例子里用的就是第一个.

但MSDN中BHOs里的这段讲的是第二个
Registration of Helper Objects
A BHO is a COM server and should be registered both as a COM server and as a BHO. The ATL Wizard provides you with the necessary registrar script code (RGS) that accomplishes the first task. What follows is the RGS code that properly installs a helper object. (The CLSID comes from the example.)

HKLM {
SOFTWARE {
Microsoft {
Windows {
CurrentVersion {
Explorer {
'Browser Helper Objects' {
ForceRemove {1E1B2879-88FF-11D2-8D96-D7ACAC95951F}
}}}}}}}

Note the ForceRemove clause that causes the key to be removed when you unregister the object.

Under the Browser Helper Objects key fall all the installed helper objects. Such a list is never cached by the browser, so installing and testing BHOs is really a quick matter.