NT, W2K, and XP uses the KnownDLLs registry entries to search for either 32-bit or 16-bit DLLs when loading the DLL. For 32-bit DLLs the KnownDLLs registry entry only affects the search for implicitly loaded DLLs. For 16-bit DLLs the KnownDLLs registry entry affects the search for both implicitly and explicitly loaded DLLs. If you incorrectly include a DLL name in the KnownDLLs registry entry, the LoadLibrary in Windows NT/2000/XP WOW fails to load a DLL located in the application's current directory.