SysdehGSP6C.dll is not a well-known or widely used DLL file. There is very little information available about it online, and it's unclear what purpose it serves or which software it is associated with.
If you encounter an error related to this DLL file, it's possible that it is a malware or a virus, or it may be a false positive detected by your antivirus software. In any case, it's recommended to perform a thorough malware scan using a trusted antivirus software to ensure your system's safety. You can also try reinstalling any recently installed software that might be associated with this DLL file to see if it resolves the error. If the problem persists, you may need to seek help from a qualified computer technician.