I'm trying to install 2.9 on a Windows XP Pro SP3 system. The basic installer
fails repeatedly on a file named mpm.exe.

An error occurred:
source file: Libraries\MiKTeX\Core\Process.cpp
source line: 296
message: The operation failed for some reason.
info: C:\Program Files\MiKTeX 2.9\miktex/bin\mpm.exe

Any ideas what's up?