Simul8 Architecture

From version 30 (2023), Simul8 will be available as a 64-bit application, as well as the previously available 32-bit option. See below for some commonly asked questions.

How do I install 64-bit Simul8?

From version 30 onwards, the installer will default to 64-bit. This will apply if you are installing Simul8 for the first time or if you are upgrading. The installer will have an option to install in 32-bit if required.

How do I get access to the version 30 installer?

Get in contact with us and we can check if you are already eligible for the upgrade and discuss your options.

What is the difference between 64 and 32-bit?

Your computer will have either a 64 or 32 bit processor, referring to the amount of data it can handle. A 64-bit operating system can run both 64 and 32 bit applications, whereas a 32-bit operating system cannot run 64-bit applications. Offering both versions will allow you to select the version most suitable for your system and any external applications you wish to use with Simul8. You can check which version of Simul8 you have by going to File > Help > Architecture.

What's is available in 64-bit that is not available in 32-bit?

Building Simul8 in 64-bit opens up more options to our developers. You will see in version 30, the internal spreadsheets have been updated and now have many more features available within including improved editing functions.

What was 32-bit Simul8 not compatible with that 64-bit is?

Many other software packages are currently available in both 32 and 64-bit versions. For example, Excel and Python. 32-bit Simul8 was not compatible with the 64-bit version of these applications. From version 30 forwards, Simul8 will now be compatible with these versions and any other software that is only available in 64-bit.

Database connections

If you are using 32-bit Simul8, there is no change to how you would set up or open an existing SQL Connection.

Creating a new SQL Connection in 64-bit Simul8 uses the same process as 32-bit, simply select the 64-bit ODBC to create the DSN.

If you want to use 64-bit Simul8 to open an SQL Connection that was created in 32-bit Simul8, you will need to set up a new 64-bit DSN.

Please see SQL Connection for more information and a guide to set up.

If you have any further questions, please get in touch with us at