Comment 2 for bug 678457

I found something strange when I delete any font and run the batch file that contains 600 pdfs to svgs the process is going with out exception then run another batch the process is giving me an exception, All I want to say if I delete or add any font even it not related to my font that using in pdf the process is going well, I have to modify the c:\windows\fonts whatever adding or deleting before running every batch