Answer / nitin

if one application required new version of dll it would
update the dll during application installation as result of
this update other program using the dll may no longer
function properly. This type of proplem is known as DLL HELL

Answer / alpesh

DLL hell, basically the versioning problem of the assembly.
Which is solved by .net automatically.

Answer / amit@m

DLL Hell refers to the set of problems caused when multiple
application attempt t share a common component like DLL or
COM

Answer / anisha

DLL HELL was there in earlier version of .Net .With the
latest Version .Net handles this automatically.
It arised due to two main reasons.:-
1.> While the dll are named the name may match with those
existing by default in windows folder or if the dll has not
been updated after adding an additional functionality then
the application will throw error and this resulted in DLL
hell.This can be avoided by either updating the DLL or by
changing the version in web.config through strong tag.
2.> There may be a side effect with dll as particular
memory reference may get deleted then the application will
throw error and result in DLL hellas it wont get that
referenced memory required in the application

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