If you must use the DLL, ensure you are using the latest version from IDAutomation's website

to the system folder and held his breath while typing the command: regsvr32 u25idautomation.dll A small dialog box popped up: "DllRegisterServer in u25idautomation.dll succeeded."

Crystal Reports loads UFLs upon startup. If you add the DLL while the program is open, you must restart it to see the new functions in the Formula Editor . Usage in Formulas

The file is a Crystal Reports User Function Library (UFL) developed by IDAutomation.com, Inc. It is designed to assist Crystal Reports developers in generating barcodes natively within the report designer without needing to rely on external applications or complex coding.

%windir%\SysWOW64 (on 64-bit OS) or %windir%\System32 (on 32-bit OS) 64-bit u25idautomation.dll %windir%\System32