If the error occurs in a local or development environment where no other users are present, check the Windows Task Manager. Kill any lingering WD250EXE.EXE or project test processes that might be locking the .fic , .ndx , or .mmo data files. Best Practices for Prevention

By handling the conflict in the code, you replace a frustrating system crash with a helpful message for your users.

When developing software with PC SOFT WINDEV , encountering crashes or memory drops can freeze your workflow. Understanding why a dump becomes "exclusive" and how to handle it will help you fix your project quickly. Why Does a Dump Exclusive Error Happen?