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DhcpGetClientInfo call in a 64-bit process is not performed

I am trying to make a call to DhcpGetClientInfo in a .net process composed as 64 bits.

[DllImport(@"dhcpsapi.dll", CharSet = CharSet.Unicode, SetLastError = true)]
internal static extern UInt32 DhcpGetClientInfo(
    String ServerIpAddress,
    ref DHCP_SEARCH_INFO SearchInfo,
    out IntPtr ClientInfo);

Some points to note

  • When a process is compiled as 32 bits, it works.
  • The returned error code is 20013. Which corresponds to the error codes : "An error occurred while accessing the DHCP JET database. For this error, see the DHCP server event log." However, there is nothing on the server in the event log. I also ensured that all special DHCP logs were enabled and nothing appeared there.
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1 answer

, UInt32. , , UInt32 ( CLS).

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