How to add DLLs like (crypt32.dll) in Qt Creator 4.7?
What's what you want to achieve?
loink against that lib?
Then have a loom at the qmake documentation.
Nokia Certified Qt Specialist.
Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)
Just add this in your .pro file, if you are using qmake:
LIBS += crypt32.dll
Or consult the docs as Gerolf suggested.