DLL vs Shared Library

Michael T. Richter ttmrichter at gmail.com
Thu Mar 30 23:12:27 UTC 2006


On Thu, 2006-30-03 at 15:55 +0200, Alan McKinnon wrote:

> In RealLife(tm) MS dlls are not versioned like ours are, so an app has 
> no easy way of knowing which version is installed.


It might help avoid future embarrassment if you learned the technology
you bashed.  Here's a random URL from Googling "DLL Version":
http://www.codeproject.com/file/fileversioninfo.asp

Note the APIs referenced there:
- GetFileVersionInfo()
- GetFileVersioninfoSize()
- VerQueryValue

So, you're absolutely right.  There's no way for an app to know which
version of a DLL is installed.  If it is written by a dullard.
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