Subtitles configuration
You can use several methods to have Zoom Player load an external subtitle file.
Drag and Drop
Play the media and then drag & drop the subtitle file from an external application, explorer for example.
Use the right-click menu
Play the media and then right-click the video area and under the "Open" sub-menu, click "Add subtitle" and browse for the subtitle file.
Correctly name and place the subtitle file
Basic layout
myvideo.mp4myvideo.srt
Language specific layout
myvideo.mp4myvideo.eng.srt
An invalid example (note the dash)
myvideo.mp4my-video.srt
With a media playing and subtitle displaying, you can configure the subtitle display settings by using the Alt+"S" keyboard shortcut.
Basic font and color settings can be accessed under "Text Settings". It is recommended to disable text Shadow by moving its track bar all the way to the left.
An interesting feature for people who are not using Widescreen TVs is the setting to add "Vertical Padding" in which widescreen content is padded so that the subtitles can appear under the video area (in the black bars).
This is done by setting Vertical Padding to "Extend to 4:3" (you need to reload the video to have the setting take effect) and then enabling "Override Placement" and setting the "V" to a higher value (this is done in real-time and you can see how it works with a video playing).