This build is referenced in the file "OLECLI.DLL" from Windows for Workgroups 3.11 build 411 (RC). The file version table states that the Product version is 3.10.0.101 (RC1). It is also mentioned in PX01251, alongside builds 71, RC1, RC2 and all compiles of RC3 (a-g). Due to the file version mentioned above, this build is probably part of RC1 stage.
