Windows NT 4.0 build 1381.4 (RC 1.83)

Windows NT 4.0 build 1381.4 (RC 1.86) is a Service Pack 3 beta build of Windows NT 4.0, which was distributed by Microsoft via Beta Evaluation Program (BEP) in Volume 27, Disc C. The installer is named, and is located in the SP3\i386 folder of the CD.

Setup
Like Windows NT 4.0 Service Pack 3 RC 1.52, the folder contains files for Service Pack 3 for both x86 and Alpha platforms, as well as a driver pack and a HP JetAdmin installer. It does have a designation file from BVT referring to its current version

Documentation
Inside the CD, there is also a text document called. It contains information about this pre-release version of Service Pack 3 for Windows NT 4.0, such as the phasing out of PowerPC support and installation instructions. The README's contents:

Bugs

 * In winver, the version string is cut off at the RC 1.52 part because the string is longer than the window itself.
 * There is an additional empty line on the bootscreen because the version string is too long.