General notes on solver licensing

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A wide variety of add on solvers are available to be used with GAMS almost all of which are the product of third party software development groups.  The base version of GAMS comes with

A fully implemented version of the BDMLP software which can be used to solve LP, MIP and RMIP model types.
A version of MILES that can be used to solve MCP model types.
Access to the COIN solvers that can solve all of the model types.
General-purpose utilities such as CONVERT, MPSWRITE, and GAMSCHK.
Other solvers in demonstration (demo) mode wherein the maximum problem size that can be fit into the solver is limited.
The BDMLP, MILES, COIN and other solvers under a demo license exhibit lesser capability and or reduced speed or reliability relative to the available additional solvers.
Fully capable versions of the other solvers can be made available by expanding ones GAMS license by arrangement through GAMS Corporation at mailto:sales@gams.com.
Certain solvers are available without charge to academic users through academic initiatives by the  solver developers as discussed in http://support.gams-software.com/doku.php?id=solver:academic_programs_by_solver_partners
When a license error is encountered the system parameters LicenseLevel and LicenseLevelText and the functions LicenseLevel and LicenseStatust can be used to recover messages and indicators.
A multiplatform license file was introduced as of distribution 23.6 which will work on all platforms supported by GAMS.