How can install the proctexe-ocx file

Itpeoples,
For a few days, I am getting an error message stating  proctexe-ocx is missing while opening an app, I did download proctexe-ocx using the given link but can someone help me how to install it, It will be so nice if I could get rid of this issue.

Sorry I am not a native speaker pardon me for my bad English
Thanks in advance,
Ruhi Tiwari