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:

Tips & Tricks:

Please add some!

VB.Net Sample Code:

Alternative Managed API: