ArtCAM uses this DLL to communicate with scanners. If you have a scanner connected, ensure its drivers are up to date. If you don't use a scanner, the error might be triggered by ArtCAM trying to "acquire" an image from a device that isn't responding. Legacy Compatibility Mode Right-click the ArtCAM shortcut, go to Properties > Compatibility , and set it to run in compatibility mode for Windows XP (Service Pack 3) Essential Resources for ArtCAM Users Post-Processors
regsvr32 "C:\Program Files\ArtCAM Pro 8.1\acqdll.dll" artcam pro 81 acqdll new
Because ArtCAM is no longer supported or updated, many users have transitioned to: ArtCAM uses this DLL to communicate with scanners