One functionality of BibDesk that is nice is the ability to click on a link at the end of the Doi entry field, which will open up the link http://dx.doi.org/DOI-HERE in a browser.

One problem I've just run into with bibliography styles that display DOIs in the References section (e.g., unified) is that a Doi entry that contains an underscore will be printed as a subscript in the References section.
For example, this code:
\documentclass{article}
\usepackage{natbib}
\begin{document}
\citet{chomsky1977b}
\citet{chomsky1977b-test}
\bibliographystyle{unified}
\bibliography{master}
\end{document}
produces this output

where chomsky1977b is
@article{chomsky1977b,
Author = {Chomsky, Noam and Lasnik, Howard},
Doi = {10.1007/978-94-015-6859-3_4},
Journal = {Linguistic Inquiry},
Keywords = {control theory, syntax},
Number = {3},
Pages = {425-504},
Title = {Filters and Control},
Volume = {8},
Year = {1977}}
and chomsky1997b-test is
@article{chomsky1977b-test,
Author = {Chomsky, Noam and Lasnik, Howard},
Doi = {10.1007/978-94-015-6859-3{\_}4},
Journal = {Linguistic Inquiry},
Keywords = {control theory, syntax},
Number = {3},
Pages = {425-504},
Title = {Filters and Control},
Volume = {8},
Year = {1977}}
Of course, the Doi entry in chomsky1997b-test breaks the BibDesk functionality of opening the link in a browser, as it opens http://dx.doi.org/10.1007/978-94-015-6859-3{\_}4 rather than http://dx.doi.org/10.1007/978-94-015-6859-3_4.
Is there a way to retain this functionality yet still ensure that the DOI is printed correctly in the References section when using a style that prints the DOI?

.bstfile. One certainly has to have a look at the.bstfile to find out whether printing is implemented via a dedicated command (as was done here with\doi{foo}) or directly; in the latter case it will (probably) be necessary to edit the.bstfile. – moewe Dec 20 '13 at 14:00