[MSDN Library April 2000] UnregisterClass (100%)
MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Window Classes > Window Class Reference > Window Class Functions
[MSDN Library September 1992] UnregisterClass (52.7394636015326%)
Product Documentation > QuickC for Windows > Windows Programming Reference > Chapter 4 Functions Directory
[MSDN Library April 2000] UnregisterClass (42.6948051948052%)
MSDN Library - April 2000 > Windows CE Documentation > Application Development > API Reference > User Interface > Functions
[MSDN Library September 1992] UnregisterClass (38.3373205741627%)
Product Documentation > Win32 SDK for Windows NT > Programmer's Reference: API (prelim. ) > API Function Reference > U
[MSDN Library September 1992] UnregisterClass (29.6536796536797%)
Product Documentation > Windows 3.1 SDK > Programmer's Reference Volume 2: Functions > Introduction > UV