Geoff Chappell, Software Analyst
This page lists the five exports that were added to the Windows HAL for version 5.0, i.e., for Windows 2000. They are exported only from the x86 builds. All are still exported as of version 6.3, but starting with version 6.2 they are exported only as forwards to the kernel (which is where all versions of 64-bit Windows export them from).
Two functions, highlighted yellow below, are undocumented. The three that are highlighted red are documented, but only to say they are reserved. According to their declarations in NTIFS.H, they are available only for Windows XP and higher.