in reply to Install CPAN BerkeleyDB module on Windows 7 (64 bit)
What does the "Microsoft Windows SDK for Windows 7 and .NET Framework 4" have to do with " dmake and MinGW" ?
You will have to install dmake and the MinGW C compiler, for example by downloading Strawberry Perl or installing them via ppm (which seems to have failed already in your case). Installing the Windows SDK won't help in that case.
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