I installed Mathematica 10.2.0.0, Excel 2013 32-bit, and MLink for Excel 3.6.0. In Excel, I added Mathematica Link in Add-Ins, and included the C:\ProgramData\Mathematica\ folder as a Trusted Location. OS is Win 7 64-bit.
When I click on the Mathematica Add-in icons, I get the error msg:
"MathLink libraries are not installed or outdated. Before linking, you must install Mathematica or the latest version of MathLink libraries."
I have tried (1) reinstalling MLink for Excel 3.6.0, and (2) reinstalling Mathematica and Mlink, and (3) reinstalling Excel, Mathematica and MLink but the error msg still appears. I have also emailed Wolfram support but have received no acknowledgement after one week.
Inside Mathematica, ExcelLink works fine but inside Excel, Mlink isn't working.
Anyone else having this issue?