x =msgbox(“Message”,0+00,“Title”)

Replace Message with what you want the error message to say. Be sure to enter the message between the quotes, without deleting them. The specified area should look like this, with your message in place of Hello Wikihow. {“smallUrl”:“https://www. wikihow. com/images/thumb/8/87/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet1-Version-2. jpg/v4-460px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet1-Version-2. jpg”,“bigUrl”:"/images/thumb/8/87/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet1-Version-2. jpg/aid1732413-v4-728px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet1-Version-2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by-nc-sa/3. 0/">Creative Commons</a>
\n</p>

<br />\n</p></div>"} Replace Title with what you want the title of the error message to say. Be sure to enter the title between the quotes, without deleting them. The specified area should look like this, with your title in place of Greeting. {“smallUrl”:“https://www. wikihow. com/images/thumb/1/11/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet2-Version-2. jpg/v4-460px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet2-Version-2. jpg”,“bigUrl”:"/images/thumb/1/11/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet2-Version-2. jpg/aid1732413-v4-728px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet2-Version-2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by-nc-sa/3. 0/">Creative Commons</a>
\n</p>

<br />\n</p></div>"}

Replace 0+00 in Notepad with a code under the Codes section of this article. (See Codes) What icons and buttons the codes will add to the error message is described there. Do not type the description into Notepad along with the code. The specified area should look like this, with your chosen code instead of 1+16. {“smallUrl”:“https://www. wikihow. com/images/thumb/9/90/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet3-Version-2. jpg/v4-460px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet3-Version-2. jpg”,“bigUrl”:"/images/thumb/9/90/Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet3-Version-2. jpg/aid1732413-v4-728px-Make-an-Error-Message-in-Microsoft-Windows-%28No-Downloads%29-Step-3Bullet3-Version-2. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by-nc-sa/3. 0/">Creative Commons</a>
\n</p>

<br />\n</p></div>"}