Hi, I am using boost 1.35 on MSVC2005, WinXP SP2, with the prebuilt boost libraries from www.boostpro.com. When trying to create a DLL, everything builds correctly. The DLL is correctly loaded by the exe, and the imported functions are visible. That is, until I add #include "boost//asio.hpp" to the DLL source. It still compiles and links, but at runtime I now get this error: LDR: LdrpWalkImportDescriptor() failed to probe x:\simon\Dev\xpworkingcopy\trunk\client\lib\Network.dll for its manifest, ntstatus 0xc0150002 This suggests the DLL has not had all its dependencies fulfilled, correct? I've tried putting boost_system-vc80-mt-gd-1_35.dll in my working directory, but no change. Can anyone help me? Thanks so much! Simon -- Linux Counter: User# 424693