FTP transfer problem

Hi,
I've created a code that transfer files from a Robot Controller to a PC.
My code is working, I can see all the files in my computer and I don't have any error from LabVIEW, but the size of the files are not exactly the same.
We decided to compare the files (binary comparison) with UltraCompare and some bytes are not the same, which cause us big trouble.
I'm using LabVIEW 2010 SP1.
You can see in attachment the result from the UltraCompare Software, also the 2 files transfered with CoreFTP and with my LabVIEW code.
Any ideas why some bytes are not exactly the same?
Thank you
Stephanie
Attachments:
FTP Problem.zip ‏110 KB

The FTP VIs are part of the internet toolkit I believe.
The files you retrieved with CoreFTP correctly match the ones you uploaded?  Also are all the differences single bits like in the pictures?
There's a file error line from the retrieve VI - do you ever see anything of note on it?
If you do all the transfers without using binary mode do you have the same issue?
Another, maybe better, option would be to use the retrieve multiple VI.  This would let you wire the cluster you build in the second to last for loop straight to the VI instead of having to use the last for loop.
http://zone.ni.com/reference/en-XX/help/370014E-01/internetftp/ftp_retrieve_multiple/
Also I didn't see the close FTP session VI anywhere.  You might make sure you're using it.

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