How do I set an SNTP server through the Windows API?

Question

I'd like to configure Windows programmatically to use a user-specified SNTP server. Is there a function in the Windows API for that?

Answer 1

You can do it through the registry:

• Registry entries for the W32Time service
• Configuring the Time Service: NtpServer and SpecialPollInterval

Alternatively, you could interact with the W32tm console utility.

The Date and Time control panel (timedate.cpl) does this with a call to W32TimeSetConfig from w32time.dll, but that appears to do nothing but set the NtpServer value in HKLM\System\CurrentControlSet\Services\W32Time\Parameters.