@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The InitializeSid function initializes a security identifier (SID). !!!!C# Signature: [DllImport("advapi32.dll", SetLastError = true)] internal unsafe static extern BOOL InitializeSid( IntPtr Sid, SID_IDENTIFIER_AUTHORITY* pIdentifierAuthority, byte nSubAuthorityCount); !!!!VB Signature: Declare Function InitializeSid Lib "advapi32.dll" (ByVal psid As IntPtr, ByRef pIdentifierAuthority As SID_IDENTIFIER_AUTHORITY, ByVal nSubAuthorityCount As Byte) As Integer !!!!User-Defined Types: [SID_IDENTIFIER_AUTHORITY] !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: Dim authorityID As Integer = 123456 Dim sia As SID_IDENTIFIER_AUTHORITY sia.Value1 = 0 sia.Value2 = 0 sia.Value3 = (authorityID And &HFF000000I) / &H1000000I sia.Value4 = (authorityID And &HFF0000I) / &H10000I sia.Value5 = (authorityID And &HFF00I) / &H100I sia.Value6 = (authorityID And &HFFI) / &H1I 'Allocate a SID large enough for the number of sub-authorities present. Dim pSID As IntPtr = Runtime.InteropServices.Marshal.AllocHGlobal(GetSidLengthRequired(sidParts.Length - 1)) 'Initialise the SID. If InitializeSid(pSID, sia, sidParts.Length - 1) = 0 Then Throw New Exception("Unexpected error trying to initialise a SID.") End If !!!!Alternative Managed API: Do you know one? Please contribute it! Documentation: InitializeSid@msdn on MSDN
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