IE10 HKLM second home page does NOT work

I was asked to set a second IE home page. We are using the "Start Page" registry key under HKLM\Software\Microsoft\Internet Explorer\Main to set the IE home page. When I add REG_MULTI_SZ  "Secondary Start Pages" and assign a URL to it under HKLM\Software\Microsoft\Internet Explorer\Main, the second IE home page does not open.

If I delete both of the reg keys above and recreate them under HKCU\Software\Microsoft\Internet Explorer\Main "Start Page" and "Secondary Start Pages" the second IE home page opens.

Windows 7 Enterprise x86/x64, IE10 created with IEAK.

Any ideas?

Thank you.

Kevin

Kevin Elwell