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Is it possible to install both 32-bit and 64-bit versions of MATLAB on 64-bit Windows 7?

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Is it possible to install both 32-bit and 64-bit Matlab at the same time under 64-bit Windows 7?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 26 Mar 2019
Edited: MathWorks Support Team on 26 Mar 2019
It is possible to Install both 32-bit MATLAB and 64-bit MATLAB under 64-bit Windows 7.
If you would like to install the 32-bit version, you will need to manually start the 32-bit MATLAB installer. This can be performed by running the setup.exe file from the /bin/win32 folder on the DVD. You can also download the 32-bit version of MATLAB by signing into your account on the following website:
MathWorks recommends installing the 32-bit MATLAB in a different directory from where 64-bit MATLAB is installed. (By default, the 64-bit version of MATLAB will install into "Program Files" whereas the 32-bit version will install into "Program Files (x86)." This distinction is sufficient.)
However, there are a handful of known issues with running 32-bit R2010b on 64-bit Windows XP, Windows Vista, and Windows 7. They are as follows:
• MATLAB Distributed Compute Server may fail when both 32-bit MATLAB and 64-bit MATLAB are installed on the same computer.
• Real-Time Windows Target will not run.
• Data Acquisition Toolbox cannot connect to parallel ports.
• Embedded IDE Link and Target Support Package may fail to start Code Composer Studio.
Note that platform cross-compilation (for example, attempting to use 64-bit MATLAB to create a 32-bit MEX file) is not supported.
R2010a and earlier releases have more significant limitations, mostly in the area of invoking external C compilers and other third party applications.
  • NOTE: Starting in R2019a the following name changes occurred:
  • MATLAB Distributed Computing Server was renamed to MATLAB Parallel Server
  • mdce_def was renamed to mjs_def
  • mdce binary was renamed to mjs

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