struct.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like struct.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like mrt.exe - to follow. These files were created so that multiple programs (eg. FL Studio) could share the same struct.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.
Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when struct.dll is attempted to be loaded either when FL Studio is starting up, or in some cases already running. Some of the most common struct.dll errors include:
- Access Violation at address - struct.dll.
- struct.dll could not be found.
- Cannot find C:\Program Files (x86)\Image-Line\FL Studio 20\System\Tools\LilyPond\bin\struct.dll.
- Cannot register struct.dll.
- Cannot start FL Studio. A required component is missing: struct.dll. Please install FL Studio again.
- Failed to load struct.dll.
- The application has failed to start because struct.dll was not found.
- The file struct.dll is missing or corrupt.
- This application failed to start because struct.dll was not found. Re-installing the application may fix this problem.
Your struct.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with FL Studio), or deleted by a malware infection. Furthermore, struct.dll file corruption could be caused from a power outage when loading FL Studio, system crash while loading struct.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.
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