js.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like js.dat, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like BlueFTP.exe - to follow. These files were created so that multiple programs (eg. BlueVoda Website Builder) could share the same js.dat 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 DAT 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 js.dat is attempted to be loaded either when BlueVoda Website Builder is starting up, or in some cases already running. Some of the most common js.dat errors include:
- Access Violation at address - js.dat.
- js.dat could not be found.
- Cannot find C:\Program Files (x86)\BlueVoda Website Builder\js.dat.
- Cannot register js.dat.
- Cannot start BlueVoda Website Builder. A required component is missing: js.dat. Please install BlueVoda Website Builder again.
- Failed to load js.dat.
- The application has failed to start because js.dat was not found.
- The file js.dat is missing or corrupt.
- This application failed to start because js.dat was not found. Re-installing the application may fix this problem.
Your js.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with BlueVoda Website Builder), or deleted by a malware infection. Furthermore, js.dat file corruption could be caused from a power outage when loading BlueVoda Website Builder, system crash while loading js.dat, 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.