(Sorry if this is a double-post, it didn't seem to go through the first time) import std.windows.registry; Results in: D:\DevTool\dmd2beta\dmd2\windows\bin\..\..\src\phobos\std\windows\registry.d(49):Error: module advapi32 is in file 'std\internal\windows\advapi32.d' whichcannot be read