急！急！急！如何侦测IE的完整版本号

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<Input type=button value=getIEVersion style="behavior:url(#default#clientcaps)" onclick='alert(getComponentVersion("{89820200-ECBD-11CF-8B85-00AA005B4383}","ComponentID"));'>Component Component ID 
Address Book {7790769C-0471-11D2-AF11-00C04FA35D02} 
Windows Desktop Update NT {89820200-ECBD-11CF-8B85-00AA005B4340} 
DirectAnimation {283807B5-2C60-11D0-A31D-00AA00B92C03} 
DirectAnimation Java Classes {4F216970-C90C-11D1-B5C7-0000F8051515} 
DirectShow {44BBA848-CC51-11CF-AAFA-00AA00B6015C} 
Dynamic HTML Data Binding {9381D8F2-0288-11D0-9501-00AA00B911A5} 
Dynamic HTML Data Binding for Java {4F216970-C90C-11D1-B5C7-0000F8051515} 
Internet Connection Wizard {5A8D6EE0-3E18-11D0-821E-444553540000} 
Internet Explorer 5 Web Browser {89820200-ECBD-11CF-8B85-00AA005B4383} 
Internet Explorer Classes for Java {08B0E5C0-4FCB-11CF-AAA5-00401C608555} 
Internet Explorer Help {45EA75A0-A269-11D1-B5BF-0000F8051515} 
Internet Explorer Help Engine {DE5AED00-A4BF-11D1-9948-00C04F98BBC9} 
Windows Media Player {22D6F312-B0F6-11D0-94AB-0080C74C7E95} 
NetMeeting NT {44BBA842-CC51-11CF-AAFA-00AA00B6015B} 
Offline Browsing Pack {3AF36230-A269-11D1-B5BF-0000F8051515} 
Outlook Express {44BBA840-CC51-11CF-AAFA-00AA00B6015C} 
Task Scheduler {CC2A9BA0-3BDD-11D0-821E-444553540000} 
Microsoft virtual machine {08B0E5C0-4FCB-11CF-AAA5-00401C608500}