External won't load on some machines

[J. Landman Gay]

This is too weird. I have an app that uses a custom external. I've been 
working with it for months, up until recently, when I stopped testing it.

Today I tried it again and it won't load at all, either in Revolution or 
in the standalone. I get "error in function handler" at the place where 
the external is called. The external is located in the correct Externals 
folder (Rev) and in the correct place in the application bundle in the 
standalone. I also tested in MC, where the external is located in the 
correct place inside the engine's folder. The same copies of this 
external have been sitting in these folders for over six months and 
always worked in the past. All of these fail now. I have tried engines 
2.7.4, 2.7.3, and 2.7.2 with the same results. I know that at least 
2.7.2 and 2.7.3 were working fine previously. I used the same test stack 
that has always worked before.

The standalone is shipping currently and we have had three people report 
the same problem recently. However, most people using the exact same 
download are not having a problem and the external loads fine. I sent a 
new build to the client today, and it works fine for him too -- but when 
I run it, it fails.

What would make an external fail to load on some machines and not others?

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com