56-Bit vs. 128-Bit Encryption Service

Extract the 56-bit service pack to a temporary folder on your hard disk by running the command

sp6ai.exe /x

and specifying a folder such as C:temp at the prompt.

In the folder in which you extracted the files, you'll have an Update folder that contains the update.inf file. Use any text editor, such as Notepad, to edit update.inf. As the following example shows, place two semicolons at the beginning of the three lines in the [CheckSecurity.System32.files] section of update.inf:

[CheckSecurity.System32.files];;    SCHANNEL.DLL;;    SECURITY.DLL;;    NTLMSSPS.DLL

Use one of two methods to check the DLLs' encryption level: Right-click any one of the DLLs, select Properties, and look for Export version on the Version tab; or in IE, click Help, About, and look for Encryption: 56 Bit in the resulting window.

D

C

B

B. If both names still exist in Server Manager, sometimes Windows NT 4.0 still displays the old name as a BDC instead of a PDC. Just delete the entry; otherwise, replication will fail or produce a lot of error messages. The OS might take a while to remove the name because the system waits for the next replication process to make the final change.