thx Arend... it worked! but only after i "reloaded" the workspace...i'm puzzled -------------my proj options------------------------ /nologo /MT /W3 /GX /Z7 /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "SNMP_PP_NATIVE_EXPORTS" /D "AGENT_PP_NATIVE_EXPORTS" /Fp"Debug/snmp lib.pch" /YX /Fo"Debug/" /Fd"Debug/" /FD