Why is vld_x86.pdb requested?

Jan 4 at 4:25 PM
I am deveoping an ActiveX control in VS2013 c++ to be used with MS Access. After starting the Debugging of the in Access embedded ocx, VS asks for the Position of the vld_x86.pdb file, which shall contain the Debugging Information of the corresponding dll. Since this file is not distributed, further Debugging is not possible with VLD.
Any sugestions?
Regards Uwe
Jan 30 at 5:40 PM
You can safely ignore this request from VS