Is there an easy way to display a messagebox in VB.NET with custom button captions? I came across What is an easy way to create a MessageBox with custom button text in Managed C++?, in the Stack Overflow archives, but it's for Managed C++.
No there is no method to access or redirect the Messagebox's default button text.
The only way to do this is to code your own or just use one of many free ones from the Internet.