c-treeACE uses the open source ZLIB library as a data compression option. These were previously picked up as a shared library. ZLIB libraries are now statically linked into Windows build of c-treeACE servers intended for general distribution.
Note: Some customer OEM agreements prevent us from distributing open source code. In these cases provisions are made to not statically link with ZLIB and a compatible ZLIB .DLL will need to be provided on the environment where compression is desired.