Excel add-ins issue in Office update

Occasional Visitor

Hi all

My job requires running a suite of user-defined specialised add-in functions within Excel. The add-in library is compiled in an XLL, and was put together by a group of quants 20 years ago at a firm that no longer exists.

As of yesterday, the new version of Excel (Office v 2006 build 13001.20384) is incompatible with this add-in library. Office sends an error warning when you try and install (/options/add-ins); and if you install anyway, none of the functions actually appear in the 'insert function' command.

Any ideas?


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