If you double-click a design file to launch into DesignShop (or Melco OS/Bravo OS/AMAYA OS) and you receive the message "The program can't start because schOptimizer.dll is missing from your computer. Try reinstalling the program to fix this problem." try these suggestions:
1) The preferred method of loading a design is by running the DesignShop program, and then choose File – Open (Or, click the Open icon in the DesignShop toolbar) and choose that design.
2) There are several ways to correct problems with Windows File Associations:
In Design Shop click: Tools – Options - File Associations
At the bottom of that screen you can click the Remove All button and then the Add All button, click Apply and OK. Then, and try double-clicking on that design file again to see if it launches DesignShop properly.
If the above doesn’t work, you can also try setting the File Association within Windows' Control Panel.
Within Control Panel, launch Default Programs. Then, click the option named either “Set Associations” or “Associate a file type or protocol with a program.”
Wait for it to populate. Scroll down to find the file extension (example .ofm,.dst,.exp)
You will see its current default. Double click on the line for that file extension (such as .OFM), then select the program that you want to automatically open (such as DesignShop).
You can uninstall and reinstall the DesignShop Software.