The module is already preinstalled in binary distributions like ActivePerl. Returns the ActivePerl build number. All file information like cre- ation time and file attributes will be copied to the new file. However it will not copy the security infor- mation. Returns the name of the Microsoft Network domain that the owner of the current perl process is logged into.
Case is ignored when looking up the Vari- ableName in the environment.
Unloads a previously loaded dynamic-link library. See LoadLibrary for information on dynamically loading a library. Use of this function is deprecated. This function does not return a UNC path, since the functionality required for such a feature is not available under Windows 95. This function has been added for Perl 5.6.