When I use File>Prepare to service buero command
coral show "out of memory" why?
But when I make eps from same file there was no problem.
You probably have way too many files and sub-directories in the computer's System's Temp directory and Windows resources can not handle that in sufficient manner.
The simple way to clean out the Temp directory, is to open the Windows Explorer (not Internet Explorer) and type '%temp%' (without the quote signs) in the navigation bar. This will bring up the system's Temp directory in the explorer. Here, you can delete all of the files and directories that are no longer used but left behind by various programs. Windows will not allow you to delete an actively used temp file or sub-directory. Once you have deleted as many as possible, then empty the trash can.
problem not solved.
I do not know for sure what the problem may be but I have seen the "Out of Memory" when I try to print. Found out it was due to a failure of my Print Spooler to start when started my Computer..
I am not sure exactly what to look for in your case as am not versed what system services are use by Corel in that feature.
I suspect there may be something similar happening. I found my problem by looking over Windows System Services and noted the print spooler was not running. A reboot from system off may help.