Currently this product is not officially compatible with RailWorks. However there is an unofficial work-around that will allow you to install this product into RailWorks by using the Install Legacy Add-on button which is available in the Package Manager tab of the RailWorks launcher screen (the one that has Start RailWorks at the bottom right of it).

Please note: We cannot guarantee that all content (e.g. scenarios) will function in RailWorks.