QTP 10 / ALM 11.52 compatibility

Hi,

we migrated from QC 10.00 to ALM 11.52 and some of our users still want use QTP 10. I found a QuickTest Professional 10.00 Add-in for Quality Center/ALM (with support for ALM 11.50) but unfortunately we can't start QTP in the ALM Explorer (see screenshot). Does anybody know if QTP 10 is still supoorted in ALM 11.52?
 Thanks!

Best regards,

Christoph