Spurious error message, Win7 first model run

When using Simile on Windows 7 and possibly other older versions of Windows, an error message can appear the first time you run a model in Simile after starting it:

"The program can't start because 5d.dll is missing from your computer"

However if you dismiss this message the model then runs normally.

This also depends on how yo start Simile and how you open the model.

It has been fixed in the latest patch to the version currently available for download.