The FVU file (File Validation Utility) or the PDF converter utilities are basically Java-based utilities provided by the Traces (TDS) department. The utility of the department would respond only if there is required JAVA installed on the system.
The process to be followed:
C:\Program Files (x86)\K.D.K. Software\Spectrum\Zen TDS\e-TDStcsfvuORC:\Program Files\K.D.K. Software\Spectrum\Zen TDS\e-TDStcsfvu
Resolution for the issue-
The Steps given are with Java version 7 update 67
or
C:\Program Files\K.D.K. Software\Spectrum\Zen TDS (If system is 32 bit)
or
C:\Windows\System32 (If system is 32 bit)
or
C:\Program Files\K.D.K. Software\Spectrum\Zen TDS\Binn (If system is 32 bit)
or
C:\Program Files\K.D.K. Software\Spectrum\Zen TDS\e-TDStcsfvu (If system is 32 bit)
After following the process, if the issue still persists contact the System engineer or IT person who would further help in checking the registry values.