Description:
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According to https://msdn.microsoft.com/en-us/library/windows/desktop/ms724358%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396, GetProductInfo() may return over 80 different SKUs. phpinfo() currently only supports 25 of them. 

I have prepared a patch against 5.5 that adds ~50 more SKUs. The following ones were omitted:
- PRODUCT_SOLUTION_EMBEDDEDSERVER_CORE (0x39), PRODUCT_EMBEDDED (0x41) - listed in the Windows SDK, but not in the link above
- PRODUCT_STARTER_E, PRODUCT_HOME_BASIC_E, PRODUCT_HOME_PREMIUM_E, PRODUCT_PROFESSIONAL_E, PRODUCT_ENTERPRISE_E, PRODUCT_ULTIMATE_E - listed on the URL above as "not supported".
- also, we do not identify a SKU where GetProductInfo returns PRODUCT_UNDEFINED (0x1)

Test script:
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<?php
  phpinfo(INFO_GENERAL);

Expected result:
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On Windows 7 Professional N, output should contain "Professional N edition"

Actual result:
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Edition is not detected