You need to run game as admin to allow it automatically register necessary COM servers in the presented DLLs. Those builds are using Direct X 8 and will not work on Windows Vista because it completely lacks it. SMBX-38A 1.4.1 (65) Build Notes: Some of those builds are has a strong imperfection which requires you to toggle your locale into Chinese (on the non-Chinese operating systems) or there are will crash with Runtime 13 error. Fake Super Mario Bros X 1.4 Download 1.2.2.
Before November 2015, SMBX 1.4.1 was considered to be fake until and found it and successfully installed it on their computers.
X by 38A (known as 'SMBX-38A' and 'SMBX 1.4') - is a Mario engine, written by as an unofficial successor to the original. X by 38A Main menu of game Platforms: Windows XP, Vista, 7, 8.1, 10 Linux/OS-X under Latest version: 1.4.4 (Feb 23, 2017) Coded in: Visual Basic 6 License: Freeware / Closed Source State: Actual Download: Source code: Official site: Super Mario Bros.