RSP is a file extension used by Microsoft Visual Studio. It is an integrated development environment for creating desktop, web and mobile applications. IDE is available for Windows and Mac system platforms.

An RSP is a file used to store information that is replies from a link editor. It is a text file that can be opened with any text editor. Contains options and file names. Linker is one of the compiler tools that brings together all the elements of a development project and creates a single executable from them.