[Solved] Duplicate dll's

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Lyn Patterson

Thread Starter
Joined
Nov 2, 2001
Messages
281
Have been checking out dll's and running DllChecker.

Am I right in thinking that if the latest version of a duplicate dll is already in C:\Windows\System then I don't need to worry about earlier versons in other applications?

If another application has a later version that the one shown in C:\Windows\System, what should I do?

If there are duplicate dll's in various applications and different versions of same, and none are listed as being in C:\Windows\System , do I have to do anything?

Thanks

Lyn
 

TonyKlein

Malware Specialist
Joined
Aug 26, 2001
Messages
10,392
Hi Lyn,

I'd leave them alone.
There are lots of utilities around that claim to be able to do that, but none of them can be relied on for 100%.

Dll's that are not being called on, because the original program has been removed, ususally don't cause any trouble anyway.

More computer problems are caused by people removing 'unneccesary' files, and running registry cleaners, than by people who don't...

I do check for them evey now and then myself , but I only remove them when I'm 100% sure they belong only to a program that I've long since removed. And even then I make a backup of them, as indeed programs like RegCleaner and the like do as well.
Interestingly, the one dll Regcleaner as well as Clean Sweep identified as useless on my system, turned out to be Pnwrap.dll.
As soon as I'd removed it, Windows Media Player complained about a missing file.


It's wise to tread carefully!

Good luck,
 
Joined
Feb 13, 1999
Messages
8,974
1. No in theory and it is generally true, but you should run all your application before deleting a older .DLL. But you should copy them to a floppy diskette for save keepings, just in case you find you need one later.

2. Nothing if the application works. As they say, if it is not broken don't fix it. With Windows 95/98/ME the file in C:\Windows\System would be used, so you can migrate the .DLL in the application folder to a floppy for save keeping and to save disk space.

3. No, if it is not located in C:\Windows\System or System32, the .DLL in the application folder will be used.

These types of problems are to be somewhat fixed with Windows XP, but the jury is still out if it's true.
 

Lyn Patterson

Thread Starter
Joined
Nov 2, 2001
Messages
281
TonyKlein and Dan O -

Thanks for the advice - don't really have any problems - was just curious about what dll's were and what they do. Have a clearer picture now and will certainly leave well alone as according to the report, the latest versions mostly seem to be in C:\Windows\System anyway. If any problems crop up in the future, I now will know what to look for.

Thanks again.

Lyn
 
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