I can run my application from Qt Creator, but a problem arises when I try to run the application (release version) by browsing to the executable and opening it. I get this error:

This application has failed to start because mingwm120.dll was not found. Re-installing the application may fix this problem.
I searched my system and found that DLL, stuck it in the same folder as the executable, and then tried running again. Another error. Different, but it still says a DLL "was not found." I repeated this process a few times, but I'm planning on sometime distributing my program and it doesn't seem convenient to have who knows how many DLLs that go along with it.

Any ideas why this is happening? Is there a way to build the DLLs into the executable or something?

Appreciate any advice you might have, thanks!