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The Error Is Class Not Registered (exception From Hresult 0x80040154 (regdb_e_classnotreg))


Right click on the application pool and choose advanced settings - enable 32 bit applications. December 7, 2012, Krishnanand says: I can't explain in words what you did for me..It was just more than frustrating and you gave a ray of hope Thanks and thank you Browse other questions tagged c# or ask your own question. July 3, 2013, Umair says: at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid) at System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid) at System.Windows.Forms.AxHost.CreateWithLicense(String license, Guid clsid) at System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid) at System.Windows.Forms.AxHost.CreateInstance() at System.Windows.Forms.AxHost.GetOcxCreate() at System.Windows.Forms.AxHost.TransitionUpTo(Int32 this contact form

July 1, 2010, Vinu nair says: thank you very much, @ the end of the day I am happy that the issue is sorted out. Emmanuel is also a contributor to the GFI Blog where he regularly posts articles on various topics of interest to sysadmins and other IT professions focusing primarily on the area of Also cursing MS a little bit. February 9, 2012, Vinay says: The following steps i have applied in OS Windows 7 and VS 2010.

The Error Is Class Not Registered (exception From Hresult 0x80040154 (regdb_e_classnotreg))

After deploying the 'X86' version to the 2008 R2 server got the issue "System.BadImageFormatException: Could not load file or assembly" Solution to this badimageformatexception is setting the 'Enable32bitApplications' to 'True' in i got the same error in windows7 x86, the software is working fine in my system but not in my client system, i am using c#, vs2010, msssql, i made debug How to politely decline a postdoc job offer after signing the offer letter? The solution is we have to force the 64 bit process to look at the registry entry at HKLM\Wow6432Node\CLSID and HKCR\Wow6432Node\CLSID.7.

I can access this COM from IE-8 32bit. Is it possible to get a professor position without having had any fellowships in grad school? In the bottom-left corner of the Options dialog, check the box that says, "Show all settings". 3. Powershell 80040154 Class Not Registered Exception From Hresult 0x80040154 Regdb_e_classnotreg In the "New platform" setting, choose "x86". 9.

You haven't provided enough information for us to help you any more than this. Using a 32bit COM object in a 64bit environment Emmanuel Carabott on September 14, 2009 (13 votes, average: 4.08 out of 5) 37 comments A while ago I ran into a more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed ensure that the COM you are invoking is registered.

Use it when you run Regasm.exe, you can see exactly what registry keys are being written. Regdb_e_classnotreg 64-bit It works..:-) July 2, 2016, Mehul says: In my case client's system windows xp mine is windows 8(64bit).Great thanks No words.Your advice saved me. Comment:All HTML, except , , will require your comment to be moderated before it is publicly displayed.If you would like your own avatar displayed, read about comment avatars. Thanks Mathi Kyle December 28, 2011 at 5:08 pm Has anyone for whom this hack hasn't worked found out an alternate solution?

Class Not Registered Exception From Hresult 0x80040154 Regdb E Classnotreg

In this article (http://msdn.microsoft.com/en-us/library/aa384253%28v=VS.85%29.aspx) they specified why reflection would be disabled. Can you add the com library as a reference and use a Ccw? The Error Is Class Not Registered (exception From Hresult 0x80040154 (regdb_e_classnotreg)) Unfortunately, I do not understand the above messages. Class Not Registered Exception From Hresult Windows 7 I needed to use a 32bit COM object in my 64bit application but alas that didn’t work.

Type notExplicitCOM = Type.GetTypeFromCLSID(notExplicitGuid); Console.WriteLine("Created {0} type from CLSID {1}", notExplicitCOM.Name, notExplicitGuid); // Compare the two type objects. weblink The interfaces are in interfaces. The other possibility for things to go wrong is that you might need to run the .NET 4.0 version of regasm.exe. I have a wcf service created in .net 4.5 framework which calls the 32 bit third party dll for process. Class Not Registered Exception From Hresult 0x80040154 Regdb E Classnotreg In Vb Net

You saved a hell of a time.Cheers. November 12, 2010, JFinger says: Thank you, thank you, thank you."Any CPU" was all over the place, and I had a 32-bit ActiveX control on a Windows Form (VS2005 C#) and share|improve this answer edited Oct 3 '13 at 5:23 Irshad 2,30051635 answered Jun 18 '12 at 5:51 Ruslan 1,831718 10 I have tryed this but am getting error"MYDll.dll was loaded navigate here Ian March 24, 2010 at 9:37 pm Kevin, if your COM interfaces are loaded out of process, then it doesn't matter the bitness of the housing exe or DLL.

September 1, 2011, Jose Luis Torres C says: Thanks a lot!!!!, you save my life with this problem, I spent a lot of time trying to figureout!!!!. System Runtime Interopservices Comexception 0x80040154 Class Not Registered Tip You can call the GetTypeFromProgID method for late-bound access to COM objects whose programmatic identifier (ProgID) you know. Can a 50 Hz, 220 VAC transformer work on 40 Hz, 180VAC?

Imran September 24, 2009 at 6:04 pm Yes, I agree Excellent workaround.

C# late binding on remote DCOM error: "Class not registered" P: n/a Paul W I attempted to find the solution and came close (http://blogs.msdn.com/robgruen/archi...24/359660.aspx) but cannot go any further. Did you try it by any chance? Thanks Emmanuel Carabott November 10, 2010 at 2:00 pm Hi Alex, Sorry to hear that you're encountering this difficulty. Regdb_e_classnotreg Windows 7 February 17, 2011, Bruce says: You just ended hours and hours of frustration!!

A 32bit dll used on a 64bit dev machine, 64bit test and 64 bit live server. Tobias August 12, 2011 at 11:19 am Hello Emmanuel, thanks for your quick reply. Endianness conversion in C Why do XSS strings often start with ">? his comment is here I still cant contact my 32-bit after adding your registry modifications.

The class identifier for COM classes is defined in the HKEY_CLASSES_ROOT\CLSID key of the registry. Best regards Raien Simon March 15, 2010 at 3:51 am Emmanuel: Does this apply to typelib registered COM object. Thanks!!! Alex October 27, 2010 at 9:14 am Encountered problem with COM inter-op calling after installing and setting up our 32bit .NET DLL library in Windows 2008 R2 64bit server.

Trying to access a 32bit COM in a 64bit environment will result in a class not registered error. Do you think that if I apply your hacks for the COM objects that I need, then the ASP pages will run in the new server without any additional 32 bits But the string entry "DllSurrogate" in key under HKey_Classes_Root\Wow6432Node\AppID\[AppID]\ was not there. It's quick & easy.