Download and install all versions from 2005 to 2015 (both x86 and x64) from Microsoft’s official site. The ECM Titanium 2016–2020 versions specifically need:

If the file was already deleted, restore it from your "Quarantine" or reinstall the software. 3. Move the Installation Directory

Paste it into C:\Windows\System32 (for 32-bit) or C:\Windows\SysWOW64 (for 64-bit).

If the path differs, adjust accordingly. If registration fails, the file may be missing or blocked.