Charles,

First, I can assure you that the latest RM/COBOL runs on Windows 10.

Second, rmc85 is a short hand we use within development, but it does not contain much version information above it is the version of the product that was introduced in 1985.  We don't have a version called rmc95.

The RM/COBOL version numbers look like xx.yy, where xx is a major version and yy is a minor release.  We introduced the major version 12 in 2008 shortly after MF acquired RM, and we haven't add any major features since, so we're still hold at a major version of 12.  The minor version is roughly equivalent to MF's Update (or Websync) number.  We are now at update 11, thus the latest version is 12.11.

So, before we can help any further  We need to know the actual version numbers that the customer was using that she was experiencing problems with Windows 10, and what version she updated to that she began to experiencing problems with printing.