COM

[StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WIN32_FIND_DATAW
{
    public int dwFileAttributes;
    public FILETIME ftCreationTime;
    public FILETIME ftLastAccessTime;
    public FILETIME ftLastWriteTime;
    public int nFileSizeHigh;
    public int nFileSizeLow;
    public int dwReserved0;
    public int dwReserved1;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
    public string cFileName;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)]
    public string cAlternateFileName;
}

[ComImportAttribute()]
[GuidAttribute("000214F9-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IShellLinkW
{
    void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile,
                int cchMaxPath,
                out WIN32_FIND_DATAW pfd,
                uint fFlags);


    void GetArguments([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs,
                int cchMaxPath);
}


[ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown),
Guid("0000010B-0000-0000-  C000-000000000046")]
public interface IPersistFile
{
    [PreserveSig]
    void IsDirty();

    void GetClassID(out Guid pClassID);

    void Load([MarshalAs(UnmanagedType.LPWStr)] string pszFileName, uint dwMode);
}

[ComImport(), Guid("00021401-0000-0000-C000-000000000046")]
public class ShellLink
{
}


public class ShortcutTargetInfo
{
    internal static string getArguments(string shortcutPath)
    {
        IShellLinkW linkW = (IShellLinkW)new ShellLink();
        ((IPersistFile)linkW).Load(shortcutPath, 0);

        StringBuilder sb = new StringBuilder(260);

        linkW.GetArguments(sb, sb.MaxCapacity);

        Marshal.ReleaseComObject(linkW);
        linkW = null;
        return sb.ToString();
    }
}