I have discovered that when I add/delete S/MIME security
registry key HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\tester\c02ebc5353d9cd11975200aa004ae40e
is created/deleted. There are a set of keys for every outlook profile. Can I depend on the key always being under c02ebc5353d9cd11975200aa004ae40e? How can I interpret the key value?