Sorry for the flash back to the Mickey Mouse Club, but it sticks.
Quick Challenge on comparing hot fixes (QFEs) applied to a server farm to determine which ones are needed across all of the servers. There are a few options like Microsoft Baseline Security Analyzer, PowerShell, VBScript calling WMI, C#, C++, etc. However, in comes 2 tools that may may your life a little easier.
What the whosie what’s it sauce? Yes, WMIC and Excel. In just 1 line of WMIC and then an import into Excel plus a Pivot Table, you can see which QFEs, SP, etc are applied to the servers in your farm.
You can also apply an xml style sheet, hint hint, to highlight those that are bad. Or, use conditional formatting from Excel.