Restrict the user from entering author mode
User Configuration\Administrative Templates\Windows Components\Microsoft Management Console
Prevents users from entering author mode.
This policy prevents users from opening the MMC in author mode, from explicitly opening console files in author mode, and from opening any console files that open in author mode by default.
As a result, users cannot create console files or add or remove snap-ins. Also, because they cannot open author-mode console files, they cannot use the tools that the files contain.
This policy permits users to open MMC user-mode console files, such as those on the Administrative Tools menu in Windows 2000 Server. However, users cannot open a blank MMC console window, on the Start menu. (To open the MMC, click Start, click Run, and type MMC.) Users also cannot open a blank MMC console window from a command prompt.
If you disable this policy or do not configure it, users can enter author-mode and open author mode console files.