To determine whether a DLL has been registered, you need to bring in domain-specific knowledge. If you know that a DLL registers a COM object with a particular CLSID, you can check whether that CLSID is indeed registered.
How To Check Which Dll Is Registered
My question is, it might be any dll ... if i just consider a scenario, i have a dll lets say kbdusr.dllI use the regsvr32 to install it ... i have a message saying its registered. In the same way, i will uninstall it.Now, I have to verify if that dll is unregistered or not.Please let me know !
The default value of the InProcServer32 subhive is the full path to the DLL which corresponds to the GUID. The type of this default value can be either REG_SZ or REG_EXPAND_SZ, and if the latter, the path will typically contain environment variable identifiers such as %System Root% in the path name.
Additionally, if this is a COM control and the dll developer ever tries to change the name of their dll, your function will need to be updated. This check makes your code dependent on some third party developer not changing their practices, which is never a safe place to be.
I think you may be asking the wrong question. Instead of trying to tell whether the dll has been registered, you should just be making sure the functionality you need is available. You shouldn't care whether "xyz.dll" is registered or not. If you need a certain COM control, you can check to see if that COM control is available. The name, location, or method of installation of the file should not affect your program.
3. Hence it is only possible to check whether the DLL is registered by ensuring that all the registry information intended to be recorded by the DllRegisterServer() API (exported by the DLL) has been successfully written into the registry.
5. A rather amateurish way to determine whether regsvr32.exe was called successfully on a DLL is to check whether a path to the DLL can be found in the registry for the default string value of the "InprocServer32" key of some CLSID. But as mentioned, this is rather amateurish and probably not practical.
6. Suggestion : if you know the ProgId of some component that the DLL does register, you can use the CLSIDFromProgID() API to determine whether the ProgId can be found in the registry. This may be sufficient for you to determine that the DLL has indeed been registered successfully.
We used to have this errors...do check if you need to run the application "as administrator" ? The DLL should have been "registered" already unless the ID used to run the application does not have sufficient rights to call or register the DLLs which should have been registered upon installation of the application ?
the application will only run under admin privileges. It checks to see if you have those privileges before running. It reports as registered and if you search the registry it appears, however when you go and run the application it states class not registered,
For example, Microsoft Office has hundreds of DLL files that can be used between the various Office programs to perform certain certain functions, such as spell checking, etc. Multiple programs can load the same DLL at the same time.
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Then I needed a way to check if the item was succesfully registered. It appeared that I needed to search the registry for a certain value, because the registered item is added to a subkey of HKEY_CLASSES_ROOT\TypeLib.
So now I needed to combine this into 1 script and add my own knowledge to be able to register the OCX files (it also works for DLL files), and then check if they have an entry in the HKEY_CLASSES_ROOT\TypeLib registry path.
Sometimes "application extension" files (.DLL or .OCX) must be manually registered to properly support functions in a program such as CTI Navigator. A variety of ActiveX, Automation, or "Run-time" type errors can result when associated application extension files (also called ActiveX controls) are not registered in Windows for use by the requesting program. Click on the appropriate topic in the list below to go directly to information relevant to that topic: Register dll or ocx file in Windows Vista, 7, 8.1, or 10
Register dll or ocx file in Windows XP (or earlier Windows)
Un-register dll or ocx files
Security and Active X Controls Enable ActiveX Specifically for CTI Navigator
To register an ActiveX control (dll or ocx) file in Windows Vista, 7, 8.1 or 10:
In versions of Windows prior to Vista, or with User Account Control (UAC) turned off in Windows Vista, 7, or 8, ActiveX files (such as .dll or .ocx) can be registered by double-clicking on the filename in Windows Explorer ("File Explorer" in Windows 8). If opening, running, or double-clicking on a file with a .dll extension (Dynamic Link Library) or an .ocx extension (OLE Control Extension) brings up an "Open With" screen: click "Select the program from a List" and click OK > click the "Browse" (or "Other") button on the lower right of the screen > progressively select directories and change the "Look-in" box on the next screen to C:\Windows\System32\regsvr32.exe > double-click on regsvr32.exe (or click the Open button) > verify that "Microsoft Register Server" is highlighted in the Programs list > verify that a check mark is in the "Always Use" box on the lower left of the Open With screen > click the OK button on the "Open With" screen. A message should appear indicating that the registration succeeded. Click the OK button on the RegSvr32 message screen.
Sometimes files need to be un-registered and then re-registered tooperate properly. To un-register a 32-bit Windows system file and then re-register it in a version of Windows without User Account Control (prior to Vista) or with UAC turned off (in a 32-bit version of Windows Vista, 7, or 8):
You can also have Installshield extract the data from the file when you add the file to the project (rather than at build) - this way you can look the registry view and check the correct information is being added.
Check that you are running Installshield with admin permissions (if its running within Visual Studio as a standard user this could prevent the COM extract)Also check that the .dll has no file dependencies that it is looking for which is causing the COM extract to fail.
I have a very large WinForms application that i would like to deploy via docker.The application is composed of hundreds of COM dlls that require registration.The application is also composed of many .NET assemblies on Framework 4.62. Some of which also require COM registration.The application needs access to remote and/or local file storage as well and SQL server. Assumption is that SQL Server is managed by the host OS as i do not plan to include it in a container.
You could also try using %windir%\sysnative\regsvr32.exe which will redirect to the real %windir%\System32\ directory (but only from a 32-bit process, so if you use that take care to make sure no one tries to run the command from a 64-bit process).
From time to time, installing a new version of custom GIS tools turns into a headache and battle with the installers. In most installation cases, custom code is deployed by the installer into a specific folder and then registered within COM. Once the installer registers the custom libraries the user is then able to utilize newly installed extensions and tools.
I created WInCC Add-in using VBA in VB6. Dll is generated. By registering this dll user can hav new toolbar in graphic designer from which use can generate text file containing details about the objects used in the .pdl file.
I have installed OS again with fresh WinCC 7.2 installation. WinCC is running fine. But still when i am trying to register through command prompt "regsvr32" command or through your method, it is not getting registered.
The Winsock Providers tab shows registered Winsock protocols. Winsock, or Windows Sockets, allows programs to connect to the internet. Malware may install itself as a Winsock provider as they can be difficult to remove. Autoruns can disable them but not delete them.
What I also really like about Autoruns is the price! There are a wealth of free tools out there that can help you with not only malware analysis but also a sysadmin, so be sure to check out this article which covers 21 free tools every sysadmin should know.
Can anybody tell me if is possible to take a registered DLL? The thing is that sometimes you had registered a DLL that is working properly but you make some changes in the code and finally you realize that the code doesn't work. It could be great, if you could take the current DLL as backup and registered the new one without concerns. 2ff7e9595c
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