JIGE inquired about unresolved external symbol in VS8 from VS6. JIGE and MrAsm believed Visual Studio .NET, LNK, Unresolved, External, and Symbol may be essential. In fact, _AtlVerifyStackAvailable, _ATL_SAFE_ALLOCA_IMPL, and ___CxxFrameHandler may also be on topic. Hi, I have just converted an application from Visual Studio 6 to Visual Studio 8 and it works fine under debug version, but it does