static Api.IShellItem _ShellItem(string path, string errMsg)
{
var pidl = More.PidlFromString(path, true);
try {
var guid = typeof(Api.IShellItem).GUID;
AuException.ThrowIfFailed(Api.SHCreateItemFromIDList(pidl, guid, out var R), errMsg);
return(R);
}
finally { Marshal.FreeCoTaskMem(pidl); }
}