TrueType copyright notices in Windows

Not entirely related to what you asked but I'm wondering, is there a way to remove uncessary glyphs so it doesn't show up in the windows font viewer? Also is there a way to change the pangram?

Sami Artur Mandelbaum said:

Hi Ray,
try this: https://www.microsoft.com/en-us/Typography/TrueTypeProperty21.aspx
To use in 64 bit systems You will need this too: https://www.dropbox.com/s/o0r41zrwhwfcfqc/OpenType Font Properties Extension x64.zip

I had previously asked about install instructions for the 64 bit version. 
Here's the instructions:
1) cut and paste the TTFExtNT.dll file into c:\windows\system32  (yes, I know this seems counterintuitive to put a 64 bit dll into the system32 folder but it's correct.)
2) You next need to register the dll using regsvr32 (hadn't used regsvr32 in near twenty years, a nostalgia trip). To do so, you need to open up a command prompt window in Administrator mode.
Easiest way for the novice - find the command window icon in Windows Accessories and right click it - a menu item to open as Administrator will be revealed. Click it.

In the command window that opens, type:
c:\windows\system32\regsvr32 c:\windows\system32\ttfextnt.dll

You should get a window saying the registration was successful.
It should be usable right away - right click on a font and see.
No reboot should be necessary.