Dev-CPP missing Irrlicht.dll error at run time

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I have created the Hello World tutorial per the Dev-Cpp tutorial and it compiles without warnings or errors. When I run the resulting executable I get the following error message in a popup dialog: "The program can't start because Irrlicht.dll is missing from your computer. Try reinstlling the program to fix this problem" I have the include and library directories for Irrlicht in the Tools->compiler options-> directories list, and I have added ../Graphics/irrlicht-1.7.2/lib/Win32-gcc/libIrrlicht.dll.a under Project->Project Options->Parameters->Linker area. Anyone have any idea how I can remedy this problem please? Thanks.