LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specification

You can either have "Edit and continue" support or optimizations. Usually, you put "Edit and continue" on debug builds, and optimizations on release builds.

Edit and continue allows you to change code while you are debugging and just keep the program running. It's not supported if the code also has to be optimized.

I had this problem too. I opened the Project Properties, and then clicked General in the C/C++ tab. There is an option that says 'Debug Information Format', which I changed to Program Database (/Zi), and I didn't get the warning anymore.

I also got this warning when converting a VS2008 project from .lib to .dll and the workaround was to change the Linker/Optimization settings on the Debug Win32 configuration from Default to:

References = Keep Unreferenced Data (/OPT:NOREF)

Enable COMDAT Folding = Do Not Remove Redundant COMDATs (/OPT:NOICF)