Don't create bogus 's' key in registry during Chrome Frame registration...

chrome_frame/chrome_active_document.rgs

 %HIVE% {
   NoRemove Software {
     NoRemove Classes {
       ChromeTab.ChromeActiveDocument.1 = s 'ChromeActiveDocument Class' {
         CLSID = s '{3E1D0E7F-F5E3-44CC-AA6A-C0A637619AB8}'
         'DocObject' = s '0'
         val EditFlags = d '65536'
         val BrowserFlags = d '&H40000140'
       }
       ChromeTab.ChromeActiveDocument = s 'ChromeActiveDocument Class' {
@@ skipping 21 matching lines @@
       }
     }
   }
 }
 
 %HIVE% {
   NoRemove Software {
     NoRemove Classes {
       NoRemove MIME {
         NoRemove Database {
-          NoRemove s 'Content Type' {
+          NoRemove 'Content Type' {
             'application/chromepage' {
               val CLSID = s '{3E1D0E7F-F5E3-44CC-AA6A-C0A637619AB8}'
             }
           }
         }
       }
     }
   }
 }