Missing extension - explorer issue?

Question

In this picture, right at the bottom you can see Files of type:
Then it says Pictures (*.bmp, *.png, *.jpg, *.gif)

My question is, how can I add the extension .jpeg in there?

Answer 1

This is not an Explorer issue. Even though you see the standard "Open file" dialog provided by Windows shell, the filters are specified by the program that displays it, and in most cases you cannot change them except by patching that program – or asking the developers to fix the fillter. (The official page for mIRC bug reports seems to be the forum.)

However, you can temporarily override these filters. Just enter *.jpeg or *.jpg;*.jpeg (or even * for all files) in the File name box and press Enter or Open.