problem compiling VC6 file.

[kinook]

It appears that the "utilGetSqValLen" line is being output by the same program that outputs the lines before that (perhaps a program is being invoked from a build event in the project/workspace). None of that output is generated by VBP itself.

It sounds like an issue with VC6 (or a program that it invokes as part of the build) when building from the command line (what the Make VC6 action ultimately invokes to actually build a workspace or project). You can verify this by checking the 'Show command-line...' checkbox on the Options tab, rebuilding the step, then copying and pasting the msdev command-lines from the build output to a Command Prompt and running it from there. If it occurs outside of VBP, you'll need to open a support incident with MS. Otherwise, we'll need a reproducible case to investigate further, including:
1) The info from Help | About | Install Info
2) The .bld file used to build
3) A build log file
4) The project being built