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Prompt: An unsupported operation

When trying to run SimRunner, the following error is encountered: An unsupported operation was attempted.

An unsupported operation was attempted.

An unsupported operation was attempted.

iGrafx executable is not responding.

iGrafx executable is not responding.


There is a known incompatibility between Sequel Viewpoint and SimRunner on ProcessModel.


The issue can be resolved by replacing the GSW files that are overwritten by Sequel Viewpoint to the original ones.

  1. The GSW files can be downloaded here, the downloaded zip will have two folders SimRunner and ViewPoint.
  2. Copy / paste the files in the SimRunner folder to the following path C:\Windows\SysWOW64 to make Simrunner work.
  3. If you are unable to use Sequel ViewPoint after replacing the files, copy / paste the files in the ViewPoint folder to the following path C:\Windows\SysWOW64 to make ViewPoint work, you will need to replace the files again to make SimRunner work.

If you need further help, please contact support.

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About the Author:

Scott Baird has been president of ProcessModel for more than 15 years. His focus has been to teach others how to improve processes dramatically. He has been successful in transferring these skills to over 200 companies, including ESPN, NASA, GE, Nationwide, Cendant, SSA and many more. Specialties: Group facilitation for process improvement, process design and simulation, simulation modeling, business management and training others to see opportunities. Scott loves to teach process improvement and has often been heard to say, “Of all the things I do, training others to improve processes is my favorite.” Scott is a father of four and a grandfather of eight. He is an avid woodworker, designing and creating presentation boxes. In his spare time, he volunteers in a college preparation program.