You can use WIn API # 12730 SHFileOperation function. It can display progress bar.

>I need to copy a large file (over 250megs) inside of my application. The COPY FILE command works great, BUT, while it's copying it looks like the system has locked up. I'm trying to figure out some kind of progress bar, or even just a little "Please Wait . . ." wait window, where the periods would sequence ("." ". ." ". . ."). In order to do either, however, the COPY FILE command needs to free up some CPU cycles.. and I can't figure out how to do it.
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>Is there a way to do this with the COPY FILE command, or is there an alternate way to copy a file that DOES allow other processes to continue or returns back a status?
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>Thanks