Microsoft 's share of the low-end server software market has increased since the probe started five years ago , but the firm denied anti-competitive practices were the reason for this .
But while Microsoft 's share of the low-end server software market has increased since the EU 's investigation started five years ago , the firm has denied anti-competitive practices are to blame .
The companies , however , declined to give specifics on customer turnover , saying they would release figures only when they report their overall company performance .