Error Loading Dll Access Denied
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Web Platform Installer Get Help: Ask a Question in our Forums More Help Resources Blogs Forums Home IIS.NET Forums IIS 7 and Above General Unable to load DLL access is denied error in loading dll access 2013 (exception from HRESULT: 0x800700... Unable to load DLL access is denied (exception from ms access error in loading dll HRESULT: 0x80070005 (E_ACCESSDENIED)) [Answered]RSS 1 reply Last post Jan 13, 2014 04:41 AM by Terry Guo - MSFT ‹ error in loading dll excel Previous Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Advanced Search Reply MagsB 1 Post Unable to load DLL access is denied (exception from HRESULT: https://support.microsoft.com/en-us/kb/2019235 0x80070005 (E_ACCESSDENIED)) Jan 11, 2014 04:57 AM|MagsB|LINK I'm consuming a 32-bit native DLL from a c# web service. Everything works fine locally in VS with IIS express. However when I deployed the site to a shared hosting provider (Server 2012 R2, IIS 7) the calls to the DLL (using platform invoke) generated an exception: Unable to load DLL 'dll_name.dll': Access is denied. (Exception from https://forums.iis.net/t/prev/1207180 HRESULT: 0x80070005 (E_ACCESSDENIED)) I asked the hosting provider to make sure my process is running in 32-bit mode and they assured me it is. Tech support also tried the following: Ran "tasklist /m dll_name.dll" It didn't return any processes that would lock the dll. Checked the permissions on the dll. The Network Service and app pool identity both had read/write/execute permissions. Just to make sure it wasn't permissions, they added IIS_IUSRS with r/w/x. Still didn't work. When this exception occurs, the exception.Message reads: Unable to load DLL 'dll_name.dll': Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) However, the exception.HRESULT value is 0x80131524 which it seems to be DLL not found. I'm not sure why there's a difference. If I delete the DLL from the /bin folder, I get the following message: Unable to load DLL 'dll_name.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) I also tried the following: 1- Replaced dll_name.dll with another native DLL from my bin folder, I got the same access denied error 2- Replaced dll_name.dll with one of my windows DLLs (user32.dll), got the same access denied error 3- Replaced dll_name.dll (in DllImport)
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring http://stackoverflow.com/questions/7109299/iis-7-unable-to-load-dll-access-denied developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up IIS 7 unable to load DLL (Access Denied) up vote 6 down vote favorite I'm having this weird problem with IIS 7 on Windows 7, where it can't load a dll I'm loading dll using. However, it seems to only happen after a while; it works fine for some random amount of time until it starts throwing this message: Could not load file or assembly 'Mono.Security, Version=2.0.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756' or one of its dependencies. Access is denied. If I delete the dll and re-add it, it works fine for another length of time, and later stops working again. This is happening in both an asp.net webpage as well as a web service, however error in loading in a normal .net desktop program it works fine. This only happens with Mono.Security, not with any other dll I'm using (I'm using Npgsql which is dependent on Mono.Security). If anyone could offer some insight into this, it would be great. asp.net web-services iis mono npgsql share|improve this question asked Aug 18 '11 at 14:43 jli 4,91821534 add a comment| 2 Answers 2 active oldest votes up vote 4 down vote accepted Check file permissions on the DLL file / folder, to make sure your ASP.NET AppPool account can access the file. Make sure the file's permissions don't inherit from parent - something might be resetting these. share|improve this answer answered Aug 18 '11 at 17:39 Leon 2,1241217 The thing is, it works fine for a while, then randomly stops working. The permissions still look fine at that point. Also, just for testing my ASP.NET is currently running on my user account, which owns the file... –jli Aug 18 '11 at 17:42 2 If you grant "Everyone" read/execute access to the file/folder, does that make the issue go away? –Leon Aug 18 '11 at 18:56 See if this helps... blogs.msdn.com/b/sayanghosh/archive/2007/04/21/… –Leon Aug 18 '11 at 18:59 I think the everyone thing did the trick! For that help I'm using your answer as the accepted. –jli Aug 18 '11 at 19:08 @Leon my problem was that the d