Link to MSDN topic with descriptions of all Win32 error codes
I recently discovered a useful topic that was published on MSDN as a part of the Open Specifications initiative that I want to link to here in order to hopefully help make it easier to find.
The topic, located at http://msdn.microsoft.com/library/cc231199.aspx, provides a full table of Win32 error code values, their associated message identifiers and descriptions of what the errors mean.
This table of Win32 error codes can be useful in many types of development and troubleshooting scenarios. For example, I often use it in conjunction with the err.exe tool that I described in more detail in this previous blog post to help narrow down root causes when troubleshooting installation issues.