HtmlBuildOutput is the custom logger for MSBuild tool. It generates the HtmlFile which displays Build Errors and Build Warnings.
MSBuild.exe [path of the solution] /logger:HtmlBuildOutput.dll;[path of the output file] e.g. MSBuild.exe C:\Work\HelloWorld\HelloWorld.sln /logger:C:\Work\HtmlBuildOutput.dll;C:\Work\BuildOutput.html