Today I got an update for PostSharp so I traced what Devenv.exe is doing while restarting.
I see that the VS writes NEW keys (REG_CREATED_NEW_KEY) under
And this seas to cause that Firebird is gone.
I see that the VS writes NEW keys (REG_CREATED_NEW_KEY) under
HKCU\Software\Microsoft\VisualStudio\11.0_Config\DataProviders
for OleDb, SQLServer, Oracle, SQLCe, but I can't see Firebird.And this seas to cause that Firebird is gone.