Hello, I was looking to remove a wrapper function I wrote a while ago when I was using Boost 1.35.0. This wrapper caught exceptions from boost::filesystem::exists and returned false: bool PathExists(const boost::filesystem::path& path) { try { return boost::filesystem::exists(path); } catch(const boost::filesystem::filesystem_error&) { return false; } } Now our organisation has upgraded to 1.41.0 I wanted to get rid of the wrapper as I can see that ticket 2725 (https://svn.boost.org/trac/boost/ticket/2725) has been fixed in 1.37.0. A quick test shows that I'm still getting exceptions from boost::filesystem::exists() when referring to a CD-ROM drive without any media in it: #include <iostream> #include int main() { std::cout << boost::filesystem::exists("d:\\afile.txt") << std::endl; } Could someone take a look at this please? Many thanks, Pete