title: Qt + VS2010: The program can't start because <xyz>.dll is missing from your computer
body: <p>I have created a visual studio 2010 solution from the following .pro file:</p>
  
  <pre><code>TEMPLATE    = app
  CONFIG      += qt yyy zzz debug_and_release
  TARGET  = XYZdepth
  
  INCLUDEPATH += .
  
  #HEADERS     = 
  SOURCES  = main.cpp xyzMainWidget.cpp
  
  yyy {
          LIBS += $(YYY_DIR)/release/yyy.lib
          INCLUDEPATH += $(YYY_DIR)
  }
  
  zzz {
      LIBS += $(ZZZ_DIR)/lib/x86/ZZZ.lib
      INCLUDEPATH += $(ZZZ_DIR)/inc
  
  }
  </code></pre>
  
  <p>Of course, I've replaced some key words in there. It references yyy.lib, which has a corresponding DLL: yyy.dll.</p>
  
  <p>I can compile XYZdepth in release mode, but when I run it it says:</p>
  
  <pre><code>The program can't start because yyy.dll is missing from your computer. Try reinstalling the program to fix this problem.
  </code></pre>
  
  <p>Can anyone help with this? Many thanks in advance!</p>