Opening and saving maps are not possible

If you try to open any map and the following message appears all the time: "Cannot open map: Generic error" (and when trying to save any map, "Cannot save map: Request denied"), it is very probable that the eminec MYmap compression library has been deleted from your computer. Check whether the files EMINECJL.DLL and EMINECZ2.DLL (if you use eminec MYmap NG, IJL11.DLL and ZLIB.DLL instead) are present in your Windows system folder (probably \Windows\System32). If this is not the case, reinstall eminec MYmap to restore these files.