Could you please translate to English the sentence "Extracted data has been found for this ROM. Do you want to load it instead?"? I need it for 1.8.0, which I'm planning to release this week. Thanks in advance!
I think I know your problem. First of all, delete the folder where you have SDSME. Redownload the latest version (1.6.0) of the tool, and extract all the files included in the package, making sure you forget no dynamic library (.dll). Try running the tool, and if it doesn't work, try rebooting your PC. If still no results, try reinstalling the .NET Framework and make sure it's v4 or later. This should make it work, and if it doesn't, then there's something wrong going on your PC. Maybe a conflict with OpenGL or something (the tool uses it for the 3D renderers).