Update an href on an IHTMLLinkElement

I need to update the contents of an href on an IHTMLLinkElement. What I've come up compiles but causes an error as soon as it's execu开发者_如何学Pythonte

static const CComBSTR href(L"http://www.google.com");
spLinkElement->put_href(href); // IHTMLLinkElement

The error I get is

Program: C:\Program Files\Internet Explorer\IEXPORER.EXE
File: c:\program files\microsoft visual studio 8\vc\atlmfc\include\atlcomcli.h
Line: 154

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