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Topic: DLL hell


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  NationMaster - Encyclopedia: DLL hell
DLL hell as described above was a very common phenomenon on pre-Windows 2000 versions of Microsoft operating systems, the primary cause being that the operating system did not restrict DLL installations.
DLL hell can be substantially avoided using Registration-free COM, the only limitation being it requires at least Windows XP or later Windows versions and that it must not be used for EXE COM servers or system-wide components such as MDAC, MSXML, DirectX or Internet Explorer.
DLLs are best for modularizing the system's components and as third-party libraries; their usage is not imperative in all cases.
www.nationmaster.com /encyclopedia/DLL-hell   (1948 words)

  
 DLL Hell
Microsoft DLL Help database to determine which versions of dll's and exe's are distributed with which product.
Simplifying Deployment and Solving DLL Hell with the.NET Framework explains the problem and indicates that Microsoft is the hero for developing.net to solve this madness.
Using DUPS.exe to Resolve DLL Compatibility Problems", he describes how to track when a dll is changed and how to compare the dll's that are loaded on various machines.
mc-computing.com /Languages/DLL_Hell.htm   (780 words)

  
 The End of DLL Hell
Side-effect DLL Hell is not caused by a bug in the newer DLL, but by an application dependent on a side effect of the DLL that might go away.
The third source of DLL Hell problems arises when a new DLL version is installed that introduces a new bug.
When a DLL is created, a base address is specified by the linker suggesting where Windows should load it in a process's 32-bit address space.
msdn.microsoft.com /library/default.asp?url=/library/en-us/dnsetup/html/dlldanger1.asp   (4487 words)

  
 Windows DLL Download Archive
Dll Orphans will search your computer, present a list of files that are and are not being used along with Registry entries for files that are no longer valid.
DLL Show displays all running processes including memory load, priority and the DLLs they depend upon, and can be used to print a hard-copy report of a selected module's dependencies.
DLL Show can also be used to display a list of all DLL and OCX modules currently installed on your system, and includes a disk scanning mode that can be used to catalog files on all drives.
www.windll.com   (1309 words)

  
  Microsoft promises end to 'DLL hell' | CNET News.com
The Redmond, Wash.-based software company is hoping to end what has become known as "DLL Hell" by building into Windows Server 2003 a system to solve an incompatibility problem with the libraries, which are software modules that can be shared by different applications.
If that particular DLL is already being used by another application, and if the original application cannot work with the updated library, then the user gets an error message.
The system in Windows Server 2003 is designed to stop updated DLLs installed by new applications from overwriting older versions of the same DLLs that may still be used by existing applications.
news.com.com /2100-1012-991466.html   (700 words)

  
 Smart Computing Article - DLL Hell
DLLs are one of three types of files used to share code among programs.
In spite of this, DLLs are often replaced or erased by new files in the course of an installation, removal, patch, or upgrade.
Use the instructions above to compare the version of your DLL with the DLL you intend to replace it with, making sure the second is the newer of the two.
www.smartcomputing.com /editorial/article.asp?article=articles/2003/s1407/55s07web/55s07web.asp   (1506 words)

  
 DLL Hell
Microsoft DLL Help database to determine which versions of dll's and exe's are distributed with which product.
Simplifying Deployment and Solving DLL Hell with the.NET Framework explains the problem and indicates that Microsoft is the hero for developing.net to solve this madness.
Using DUPS.exe to Resolve DLL Compatibility Problems", he describes how to track when a dll is changed and how to compare the dll's that are loaded on various machines.
www.cpcug.org /user/clemenzi/technical/Languages/DLL_Hell.htm   (780 words)

  
 WELL,WELL ! .dll HELL ! - Desktop Sidebar Forums
DLLs that are part of programs you've installed, that would be somewhere else.
Windows DLLs can be unloaded by security flaws but not something you can do as a general user.
Granted it's a great idea of having DLLs in a central repository that you can download, you have to keep aware that the version that is listed there...may not be the version you may use.
www.desktopsidebar.com /forums/index.php?showtopic=5495&hl=   (530 words)

  
 Desaware Inc.- Articles: Components and Tools for Microsoft Visual Studio Developers
This DLL contains a group of common dialog boxes that can be used by any Windows application to perform standard operations such as obtaining a file name or choosing a color.
It would not be unusual for an individual to own several programs that use this DLL, each of which had a different version of the DLL on its distribution disks.
And all it takes is a single DLL, VBX or OCX to be missing, or present in an older version (or even an incompatible newer version), for an application to fail.
www.desaware.com /tech/dllhell.aspx   (2758 words)

  
 Junfeng Zhang's Windows Programming Notes : DotLocal (.local) Dll Redirection
, among other things, a workaround for the “Dll Hell” is to carry the “shared” dll with the application, which effectively makes the “shared” dll private.
If you can redirect the dll to a private version for a set of specified applications, and let other applications use the system one, it will be the best of all the world.
I didn't have enough time to track it down completely, but it seems that part of the problem was due to the pathname being a perfectly ordinary descriptive name for this country and the language version of Windows XP SP2 that it was installed on.
blogs.msdn.com /junfeng/archive/2006/01/24/517221.aspx   (990 words)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
DLL Hell is the common term for Dynamic Link Library load failures / external or type library resolution errors.
This information is placed into the registry by an application such as regsvr32 or an application capable of loading the DLL and calling the DllRegisterServer function.
ActiveX controls (still dlls / ocxs) are very prone to failure if member types or attributes are changed.
www.papwalker.com /dllhell/index-page2.html   (248 words)

  
 DLL Help Database
DLL Help exists to help developers, system administrators, and other IT professionals who face file version conflicts with Microsoft software.
Use DLL Help to identify the software that installed a specific version of a DLL file.
DLL files are generally not available for download from Microsoft.
support.microsoft.com /servicedesks/fileversion/dllinfo.asp   (249 words)

  
 Hell Programs - OhHell, 2000th HellFire screensaver, Painkiller, ...
Oh Hell is an addictive and fun card game with a difference and you will soon...
Stranded in a place between heaven and hell your time of judgment is at hand...
Oh Hell is an addictive and fun card game with a difference and you will soon realise why it is called Oh Hell.
www.softchecker.com /files/hell.html   (660 words)

  
 DLLs, Installation, And Other Evils
Ultimately, DLL Hell is caused by programmer error (occasionally user error); but there are some common mistakes.
Even if the DLLs are perfect, if the registry information is incorrect you can get results identical to removing a DLL or replacing it with an old version.
DLL Hell is not unique to Windows; Linux and other Unix / Unixy operating systems have had problems with DLL Hell, as well.
home.att.net /~raffles1/older/dlls.htm   (2233 words)

  
 The Old Joel on Software Forum - A History question ... DLL Hell and Unix
You can still get DLL hell in Unix, anytime you've got a contract between your app and a shared piece of code, and then that contract changes in even a subtle fashion, breakage will occur.
You control DLL versions and names, and decide how many must be upgraded when you install a patch or a new feature.
DLL hell was not a problem for the Windows team, therefore they did not take time to address the problem.
discuss.fogcreek.com /joelonsoftware/default.asp?cmd=show&ixPost=2899   (1571 words)

  
 Simplifying Deployment and Solving DLL Hell with the .NET Framework
The design guidelines and implementation techniques used in the.NET Framework to solve DLL Hell are built on the work done in Microsoft Windows® 2000, as described by Rick Anderson in The End of DLL Hell, and by David D'Souza, BJ Whalen, and Peter Wilson in Implementing Side-by-Side Component Sharing in Applications (Expanded).
Simply stated, DLL Hell refers to the set of problems caused when multiple applications attempt to share a common component like a dynamic-link library (DLL) or a Component Object Model (COM) class.
After all, DLL Hell is primarily caused by the difficulty of maintaining backwards compatibility in shared components.
msdn2.microsoft.com /en-us/library/ms973843.aspx   (6241 words)

  
 DLL Hell
We added a new button and the code for its functionality is actually buried in a new dll.
I was under the impression that with.Net we could simply overwrite the old DLL with the new one, and as long as we don't change function names, input parameters and return types everything would work just fine.
I had to increment the assembly and file version and he had to remove and re-add the dll as a reference in the project and recompile it to get the new DLL to be called.
www.experts-exchange.com /Programming/Programming_Languages/Dot_Net/Q_22106380.html   (356 words)

  
 Avoid DLL Hell with Registration-free COM
DLL hell, is a common description of what happens when an application loads and executes code from a DLL whose name is the same as a referenced DLL, but whose behavior differs from the developer's expectations.
Most often, this happens when an installer copies and registers an older version of a DLL, replacing a newer version of that component or overwriting a different one with the same name, or—less commonly—by introducing a backward-breaking change in a newer DLL.
In either case, applications that were working fine suddenly break, either because the older DLL doesn't support the functionality of the newer DLL that the applications expected to load, or because the newer DLL breaks functionality that was working fine in a previous version.
www.devx.com /vb/Article/32888?trk=DXRSS_LATEST   (993 words)

  
 DLL hell - Error messages and MP3 players - Articles @ MP3Machine
A DLL is a library of executable functions or data that can be used by one or several Windows applications at once.
A number of DLLs are included with the Windows platform and can be used by introduced software applications, though DLLs are often written for and loaded with each particular application.
A DLL provides one or more particular functions that a program accesses by creating either a dynamic or static link to the DLL.
www.mp3machine.com /news/770   (380 words)

  
 [No title]
DLL Hell is a problem faced not only by VB but any COM client.
The problem happens when 2 clients are using 2 different versions of the same COM component but the COM component developer had not taken care to make sure the newer version of the COM component is backward compatible.
After a coule of months, a new DLL Hello.dll (same name) now is upgraded to version 2.0 comes along with another application which you just installed.
www.aspspider.net /qa/Question16.aspx   (471 words)

  
 DLLAide 1.15.0. A DLL Manager and Checker for Windows. - DLL, DLLs, DLL Files, DLL Manager, DLL checker, DLL error, ...
DLLAide(TM) utility software provides you with an answer to DLL hell.DLL hell occurs when one application disables or adversely affects others by installing an incompatible dynamic link library, or DLL, file.
This causes applications that require the newer DLL to fail.
Secondly when a newer DLL is properly installed but an existing application on the PC won`t work with the newer version.This has long been an outstanding problem with Windows.
www.gold-software.com /DLLAide-review14171.htm   (198 words)

  
 IBM developerWorks : Blogs : Informix Application Development
Following an earlier rant about DLL load addresses, another aspect of Windows Dynamic Load Libraries that can cause a headache is run-time DLL dependancy.
If you build an ESQL/C application on Windows you can expect it to depend on the certain Informix DLLs at runtime, which is why the Informix Connect runtime component needs to be installed as part of deployment.
The next round Informix Client SDK and I-Connect products will install the DLL and other dependencies as merge module files during installation, so embedding the manifest in your executable will be all that is needed to deploy it without a static link.
www-03.ibm.com /developerworks/blogs/page/gbowerman?entry=dll_hell_part_2_msvcr80   (908 words)

  
 [No title]
To enable DLL redirection, create a file with the same name as the program whose DLLs you wish to redirect, but with.local appended to the name.
In Windows XP and Windows Vista™, the rules for DLL redirection are a little different, but the general principle remains the same.
DLL redirection won't entirely get you out of DLL Hell, but at least it gives you some first-aid techniques for tending the wound while you sort out the problem.
www.microsoft.com /technet/technetmag/issues/2007/01/WindowsConfidential/default.aspx   (697 words)

  
 Thinstall Eliminates DLL Hell and Software Installation Conflicts
Applications that require DLL or ActiveX components can experience installation and runtime problems due to corrupt computers or locked down administrator rights.
When installing commercial software on computers ‘in the wild’, installation conflicts are one of the top 3 issues requiring an expensive support call.
With Thinstall, all registry keys, DLLs and third party libraries are packaged into a single, compressed EXE.
www.thinstall.com /solutions/dll_hell.php   (348 words)

  
 In DLL hell   (Site not responding. Last check: 2007-11-06)
The DLL file may be missing due to an accidental deletion, or worse yet, may have been overwritten by another version of the same file during an installation procedure.
As you’re searching the DLL Help Database, keep in mind that the results are dynamically compiled and displayed for each search and can time out.
When your troubleshooting expedition leads you in the direction of DLL hell, one of the best places you can go to find information on sorting out the problem is the DLL Help Database on the Microsoft TechNet site.
home.comcast.net /~tlmcsonline/docs/dll_hell.htm   (1383 words)

  
 DLL Hell
It's good to know what used to happen before with the deployed applications, the way they used to behave when new version of an existing application was installed and what exactly is "DLL Hell" and so on.
In the most typical case, one application will install a new version of the shared component that is not backward compatible with the version already on the machine.
The component is then registered in the repository and indexed by its strong name, so there is no confusion between different versions of the same component, or DLL.
www.startvbdotnet.com /extras/dhell.aspx   (790 words)

  
 Registry Backup and DLL Hell?
DLL Hell occurs when an install program updates an existing DLL *without* checking for dependencies (I.E.: other programs that use the same DLL).
Since DLL [version] information is stored in the Windows Registry, DLL Hell can occur if you revert back to a previous Registry *without* reverting your DLLs at the same time (a next-to-impossible task).
Microsoft is continually adding features to its DLLs, and in order for an application vendor to utilize those features and ensure that the latest DLL is available, it installs the latest DLL along with the application.
www.infopackets.com /channels/en/windows/gazette/2003/20030924_registry_backup_and_dll_hell.htm   (890 words)

  
 Microsoft .NET Development : Adopting C#, and Eluding DLL Hell
DLLs gave developers the ability to create function libraries and programs that could be shared with more than one application.
Over the history of Windows, the method of tracking of DLL usage was changed by Microsoft several times, as well as the problem of rogue installations that didn't play by the rules--the result was called "DLL HELL", and the user was the victim.
An Assembly is a logical DLL and consists of one or more scripts, DLLs, or executables, and a manifest (a collection of metadata in XML format describing how assembly elements relate).
www.extremetech.com /article2/0,1697,1187696,00.asp   (1669 words)

  
 Annoyances.org - Dll hell seems to be cause by installing tweakUI (Windows 98 Discussion Forum)
It's a nightmare---there are so many programs and programletts that refuse to work because someone stomped on their dlls.
QUOTE: from a windows tech discussion program: Hank's headache was caused by a common DLL demon: a rogue install program that doesn't check versions before it copies DLLs into the system directory.
I call this Type I, or replacing a DLL with a previous version, DLL Hell.
www.annoyances.org /exec/forum/win98/1054923877   (300 words)

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