To recreate the problem. create a file "filename..extension" and compress it. When using Poco to decompress it, the library throws a "Zip Exception: Illegal entry name filename..extension containing .." I note someone came across this issue last August in your forum, but I could not find a reply or an open issue int this BugDB.
My utility is trying to download, decompress and parse some government documents. I cannot request that they not use valid filenames containing ".."
Thanks