Cure for IE's paranoia

After the update KB3025390 was installed for IE11, it's stopped to allow access to its internal objects from outside. As it was described in this article, this behaviour could be cured by the following registry changes:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_DISABLE_INTERNAL_SECURITY_MANAGER]
"iexplore.exe"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_DISABLE_INTERNAL_SECURITY_MANAGER]
"iexplore.exe"=dword:00000001

Update: MS has released an update KB 3021952. To be installed to solve the issue instead of hacking the registry.


See also: http://www.inflectra.com/Support/KnowledgeBase/KB105.aspx

Association of file extensions in the registry

HKCR\.ext  def. value refers to a HKCR\Appl.DocType
which could have key  CurVer which refers to Appl.DocType.version

In this case look for HKCR\Appl.DocType.version

To let the ShellExecute() system call find the associated executable when called with the document name, the following key should exist and be valid:
HKEY_CLASSES_ROOT\Appl.DocType[.version]\Shell\Open

Browser pas

Desperate one behaves vilely. Opera installer v11.11 made that browser default without asking me (I can swear, no questions were asked). To return the IE as default browser (not that I like or use IE for browsing, but to make it start first for test purposes) I had to modify the registry.
As it turned out, the HKCR hive is not a link but a cascade union of the HKEY_LOCAL_MACHINE\SOFTWARE\Classes and then HKEY_CURRENT_USER\Software\Classes. So, modifying one branch, make sure there is no the same in the second place which will override the values.