Try the following, and boot HDD Samsung Tools from the grub4dos menu. Let me know if it helps.
I made an xdelta patch that adds grub4dos support, besides isolinux/syslinux support.
Go to the exact post (link updated): http://www.ultimatebootcd.com/forums/viewtopic.php?p=6568#6568
Go to the topic: viewtopic.php?t=1635
Does every freedos application crash on that PC? -> I think so...I tried to launch only Freedos and it crashes the same way.
As far as I know the freedos image didn't change between UBCDv50b10 and UBCDv50b10.
Did you test it the previous time also with an usb device? ->yes
And now the results with ubcd5.11"grub4dos" :
It works ...almost
When I tried to launch Samsung 2.11 it wrote something like : "extracting autorun.cab..." and then exit properly to the console
( I took the precaution to add my own EStool.exe (v2.11) on the key and I could launch it manually without problem )
So there is still at least a little problem but not very important, isn't it ?
I tried to launch Freedos too and it has the same behaviour (exiting properly, which I think is the right behaviour...)