This directory contains versions of Rblas.dll linked against the ATLAS library:

- Athlon64_SSE3
- AthlonXP
- PII, PIII, P4, and PM (Pentium M) for various Pentiums
- C2D for Core2Duo (but not necessarily corresponding QuadCore Xeons)


The Rblas.dll in PII, PIII and AthlonXP are linked against ATLAS 3.4.1,
P4 and PM against ATLAS 3.6.0, 
Athlon64_SSE3_512k against ATLAS 3.7.37, and
C2D against ATLAS 3.9.11.

Rename ...\bin\Rblas.dll and drop the new Rblas.dll into the ...\bin folder.

Using the wrong version will either not work at all or work much slower
than is possible.
Note that using a different BLAS may also result in numerical issues.