>>>>Ok Based on the above I Tried to make Changes in my Code. But seems to be not Okay ? I also didn't got how I will log the Error. Can you please extend your help based on my Code as mentioned below.
>>>>
>>>>

>>>>nRECCOUNTCONVERT=ALLTRIM(STR(RECCOUNT()))
>>>>cRECCOUNTCONVERT=' of '+ALLTRIM(STR(RECCOUNT()))
>>>>Local loMyObject
>>>>loMyObject = CreateObject("MyObject")
>>>>loMyObject.Mainprocess()
>>>>Return
>>>>
>>>>DEFINE CLASS MyObject AS Custom
>>>>PROCEDURE Mainprocess
>>>Local Parallel as Parallel
>>>>local llReTry
>>>llReTry = .f.
>>>
>>>>Parallel = NewObject("Parallel", "ParallelFox.vcx")
>>>>Parallel.SetWorkerCount(Parallel.CPUCount)
>>>>Parallel.StartWorkers()
>>>>
>>>>SCAN
>>>>oFilename=ALLTRIM(Fullpath)
>>>>iFilename=ALLTRIM(Newpath)
>>>>RCNON=Recno()
>>>>Try
>>>>Parallel.CallMethod("Pdf2Ps", This.Class, This.ClassLibrary,,,oFilename,iFilename,RCNON)
>>>>catch to loError
>>>>   if loError.ErrorNo = 2027
>>>>       llReTry = .t.
>>>>   else
>>>> *     log the error
>>>>   endif
>>>>ENDTRY
>>>>if m.llReTry
>>>>   try
>>>>Parallel.CallMethod("Pdf2Ps", This.Class, This.ClassLibrary,,,oFilename,iFilename,RCNON)
>>>>   catch to loError
>>>> *     log the error
>>>
>>>>ENDTRY
>>>>ENDSCAN
>>>>ENDPROC
>>>>
>>>>PROCEDURE PDF2PS
>>>>PARAMETERS oFilename,iFilename,RCNON
>>>>Declare INTEGER VeryPDF_PDF2Vector in pdf2vec.dll String strCommandLine
>>>>Strcmd= 'pdf2vec -$ XXXXXXXXXXXXXXXX '+CHR(34)+iFilename+CHR(34)+" "+CHR(34)+oFilename+CHR(34)
>>>>nRet = VeryPDF_PDF2Vector(strcmd)
>>>>Sys(2335, 1)	&& disable unattended mode, allow UI
>>>>WAIT WINDOW 'Converting to PS..'+ALLTRIM(STR(RCNON)) NOWAIT
>>>>RETURN
>>>>ENDPROC
>>>>ENDDEFINE
>>>>
>>>>

>>>
>>>I made some changes in your code.
>>>
>>>Logging the error is normally done with writing to a log file with strtofile. We have a special WriteToLog method which uses strtofile to write to the log file. You will need to implement your own logging of the error.
>>
>>Thanks, It worked fine than before, Previously it was giving error at Many instances but now giving errors at 4-5 Instances when I take the sample of 1000 files, Seems that the Second TRY is making the conversion success. Is it not possible to Keep TRYING unless it succeeds using DO WHILE.
>
>It is possible to keep trying. I would change the code this way then
>

>llReTry = .f.
>lnAttempts = 0
>try
>
>   code that may fail
>catch to loError
>   if loError.ErrorNo = 2027
>       llReTry = .t.
>  endif
>endtry
>   
>
>do while m.llReTry = .t. and m.lnAttempts <= 10
>     lnAttempts = m.lnAttempts + 1
>   
>    try
>
>   code that may fail
>   llReTry = .f.
>catch to loError
>   if loError.ErrorNo = 2027
>       llReTry = .t.
>  endif
>endtry
>
>enddo
>

Thank you Very-Very Much. I will Study it more and try to incorporate it based on all the guidance you have given and will let you know tomorrow that how it works.
Thanks a lot again.