The ConvertStringSidToSid function converts a string-format SID into a valid, functional SID. You can use this function to retrieve a SID that the ConvertSidToStringSid function converted to string format.

C# Signature:

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool ConvertStringSidToSid(
            string StringSid,
            out IntPtr ptrSid
            );

VB Signature:

    Private Declare Auto Function ConvertSidToStringSid Lib "advapi32.dll" ( _
    ByVal Sid As IntPtr, _
    ByRef StringSid As IntPtr _
    ) As Boolean

User-Defined Types:

None.

Notes:

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VB.Net Sample Code:

Alternative Managed API:

Documentation

ConvertStringSidToSid on MSDN

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