@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Get pac url from DHCP or DNS. !!!!C# Signature: [DllImport("winhttp.dll", SetLastError = true, CharSet = CharSet.Unicode)] [return: MarshalAs(UnmanagedType.Bool)] public static extern Boolean WinHttpDetectAutoProxyConfigUrl( UInt32 dwAutoDetectFlags, [MarshalAs(UnmanagedType.LPWStr)] out String ppwstrAutoConfigUrl ); !!!!VB Signature: Declare Function WinHttpDetectAutoProxyUrl Lib "winhttp.dll" (TODO) As TODO !!!!User-Defined Types: None. !!!!Alternative Managed API: Do you know one? Please contribute it! !!!!Notes: Values for dwAutoDetectFlags : UInt32 WINHTTP_AUTO_DETECT_TYPE_DHCP = 0x00000001; UInt32 WINHTTP_AUTO_DETECT_TYPE_DNS_A = 0x00000002; or both WINHTTP_AUTO_DETECT_TYPE_DHCP|WINHTTP_AUTO_DETECT_TYPE_DNS_A If both the DHCP and DNS auto detect flags are set, DHCP is used first; if no PAC URL is discovered using DHCP, then DNS is used !!!!Tips & Tricks: Please add some! !!!!Sample Code: String result; if ( ! Winhttp.WinHttpDetectAutoProxyConfigUrl(Winhttp.WINHTTP_AUTO_DETECT_TYPE_DHCP|Winhttp.WINHTTP_AUTO_DETECT_TYPE_DNS_A, out result)) { UInt32 error = (uint)Marshal.GetLastWin32Error(); System.Console.WriteLine("Error "+ error); } System.Console.WriteLine(result); Documentation: WinHttpDetectAutoProxyUrl@msdn on MSDN
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