In case you encounter a problem with AIMMS, please check in the latest available AIMMS version, the AIMMS documentation, the AIMMS knowledge base, and the AIMMS Google Group to see whether your issue has already been resolved.

AIMMS Installation Issue

In case you run into any problems with the AIMMS installation, please make sure you download and install the necessary prerequisites from our download page first, and afterwards restart your computer. In case you keep experiencing problems, run the following statement (substitute the numbers to represent the version you try to install) from the command line, it generates a log file that you should send to for further investigation.

msiexec /i Aimms- /lv* logfile.txt

When using AIMMS 3.13 and higher, you can simply click on the log file button displayed in the installation dialog after an installation failure. This will show the log file, which you can then send to the e-mail address above.

General AIMMS Issue

If the problem persists, please report the issue to our support team so that we can try to help you as much as possible based on the information you provide. We can help you most effectively if the information you provide enables us to reproduce your problem in our environment. Therefore, when contacting our support team, please provide us as much relevant information as possible, such as:

• AIMMS version (exact version: see menu Help > About)

• Your platform (operating system: exact version, CPU: 32 bit or 64 bit)

When applicable:

• Model size and structure (LP, MIP, NLP etc.)

• Solver used (exact version: see menu Settings > Solver Configuration)

• Type and version of other software involved (e.g. Excel, database)

In many cases it would greatly help us in reproducing your problem if you can also provide:

• Your AIMMS project files (with extensions .prj, .libprj, .amb, .nch, .dat)

• All necessary data files

• A reproducible sequence of actions leading to the problem

In some cases when you encounter unclear compilation or execution errors, the .err and .log files may bear useful information. In such a case, please provide these files as well. They are located in the log sub-folder of your project directory.


We have discovered that most of the issues that customers encounter are caused by misconfiguration of the PRO server.
When you encounter issues running AIMMS PRO, check the manual to make sure that you did all the recommended steps and the configuration that you have is correct. There is a high possibility that you will find a solution faster than submitting an issue with support.

Commonly encountered issues

You can find an updated list of commonly errors in the AIMMS PRO manual

Reporting an AIMMS PRO issue

When reporting an issue keep in mind that the more information you provide, the easiest is for our engineers to pinpoint the cause of the issue. In the end, this is beneficial for you because it means you will get a response faster.

Below we present a list of what we need to consider an issue ready for investigation:

Additionally, you could speed up the investigation if you would provide:


If the files you are going to attach are large, please send them compressed in a zipped archive. Our e-mail system is able to handle messages up to a total size of 10MB (including attachments).

If you need to send us larger (zipped) files, then please inform us beforehand and we will create for you an account on our upload site: You will be able to upload your files into the created account as soon as you have received from us a username and a password (both are case sensitive).

You can reach the AIMMS support team by email at or by phone and fax using the specific numbers for each office given at

Contact us