Building of executable and shared library with cmake, runtimelinker does not find dll

I am working with gcc(cygwin), gnu make, windows 7 and cmake.

my cmake testprojekt has the following structure

rootdir|-- App|   |-- app.cpp|   +-- CMakeLists.txt|-- Lib|   |-- lib.cpp|   |-- CMakeLists.txt|-- MakeFileProject+ CMakeLists.txt

rootdir/App/app.cpp:

#include<string>void printThemMessageToScreen(std::string input);//prototypeint main(int argc,char **argv){ printThemMessageToScreen("this will be displayed by our lib"); return 0;}

rootdir/Lib/lib.cpp:

#include<iostream>#include<string>void printThemMessageToScreen(std::string input){ std::cout<<input;}

rootdir/CMakeLists.txt:

cmake_minimum_required(VERSION 2.6)project(TestProject)add_subdirectory(App)add_subdirectory(Lib)

rootdir/Lib/CMakeLists.txt:

add_library(Lib SHARED lib.cpp)

rootdir/App/CMakeLists.txt:

# Make sure the compiler can find include files from our Lib library. include_directories (${LIB_SOURCE_DIR}/Lib) # Make sure the linker can find the Lib library once it is built. link_directories (${LIB_BINARY_DIR}/Lib) # Add executable called "TestProjectExecutable" that is built from the source files add_executable (TestProjectExecutable app.cpp) # Link the executable to the lib library. target_link_libraries (TestProjectExecutable Lib) 

Now, when i run cmake and make, everything will get generated & built with no errors, but when i try to execute the binary, it will fail because the library which was generated could not be found.

BUT: when i copy the lib dll into the same directory like the app exe, it will get executed!

also: if i configure the library to be static, it will also execute.

how to tell the runtime linker where to look for my dll?

UPDATE:

Solution according to the Method proposed by User Vorren:

I opened up the registry editor, and navigated to the following Key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths

, here i created a new key with the name of my Applikation:

in this case : TestProjectExecutable.exe

after that, the (default) value was set to the full path of TestProjectExecutable.exe including the filename and extension. Then i created another String Value called "Path" and set the value to the folder where the dll was located: