in traceabilitytool/mainform.cs [148:155]
private void chkCSVOutput_CheckedChanged(object sender, EventArgs e)
{
outputCSV = chkCSVOutput.Checked;
btnGenerateReport.Enabled = (chkTextOutput.Checked || chkCSVOutput.Checked) &&
Directory.Exists(txtRootPath.Text) &&
Directory.Exists(txtOutputPath.Text);
}