Mclmcrrt9-9.dll [top] -

Users typically encounter this file when it is missing or incorrectly configured, resulting in errors such as: "Could not find version 9.9 of the MATLAB Runtime."

Yes. You can have MCR 9.9 (v99) and MCR 9.12 (v912) side by side. Each has its own folder. However, they cannot be used interchangeably. mclmcrrt9-9.dll

Some aggressive antivirus programs quarantine mclmcrrt9-9.dll because it is an executable library from an unsigned (or less common) source. Add the entire v99 folder to your antivirus’s exclusion list. Users typically encounter this file when it is