CalEasy supports exchanging the standard instrument drivers supplied with CalEasy with a user supplied instrument driver(s). This provides a way to use your own instrument(s) for calibration instead of the drivers supplied with CalEasy. If you choose to use your own instrument, you must create a DLL driver for your standard instrument and configure CalEasy to use your driver. New drivers can be written using the ATEasy software development environment or with any other development environment including C/C++, Visual Basic, LabView or any other language that supports the creation of DLLs. CalEasy is supplied with samples for several instrument drivers created in ATEasy. See the README.txt for a list of supplied drivers and examples.