Finding DLL Dependencies for Classic ASP Web application - iis

I am a system admin tasked with migrating Classic ASP based web application from Windows Server 2003 (IIS 6) to Windows Server 2008 r2 (IIS 7.5)
The application is very old written in around 2002-03 and the concerned developer people are not around anymore to let me know anything related to this Web Application.
After lot of trial and error, I have been able to get the Web Application running on 2008 r2.
While navigating through application, I am getting various errors which on further investigation I understood are related to DLLs which the Web Application is invoking.
My issue is, I don't know what all DLLs are used/invoked on the source server, which I need to copy & register on the new server.
I tried to use DependancyWalker but I am not able to find a way to use this tool for Web Application.
I would really appreciate this community's help in this regard.

I found out a simple way of finding the DLLs which are specific to my Web Application.
I got a small freeware utility called as RegDLLView from Nirsoft.net which lists all the DLLs which are registered with the Server with File Paths, Description, Company name, etc details.
I found out all the DLLs which my Web Application is invoking by checking the company name and paths of all the DLLs which were listed.
Now I just have to copy these DLLs to my new server and register these on the new system.

It's not rocket science.
When you find a COM component dependancy you can use the ProgId to identify and locate the DLL which is registered in the Windows Registry.
The only DLL dependancies come from COM component DLLs and these can only be invoke in Classic ASP / VBScipt with the
Server.CreateObject("ProgId")
and
CreateObject("ProgId")
respectively.
Wrote about this extensively here
Error ASP 0177: 8007007e Server.CreateObject fails for COM DLL

Related

ASP.NET Core 2.0 app targeting .NET 4.6.1 fails to host on IIS

The problem
IIS ASP.NET Core module is unable to start an ASP.NET Core 2.0 app.
Browser: HTTP Error 502.5 - Process Failure
Windows Event Log: Application ‘MACHINE/WEBROOT/APPHOST/AppSite’ with physical root ‘C:\inetpub\apps\AppFolder\’ failed to start process with commandline ‘C:\inetpub\apps\AppFolder\App.exe’, ErrorCode = ‘0x80004005: 1’.
ASP.NET Core Module Log: Log file is created but is empty.
The setup
App: ASP.NET Core 2.0 targeting .NET Framework 4.6.1.
Server: Windows Server 2012 R2 Standard 6.2.9200 with IIS 8.5.9600.
The story
We've created a blank MVC Web application using the default project templates provided in Visual Studio 2017.
The app is deployed following the official specification: https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/.
The confusion arises mainly from these two points:
Running the app through command-line on Kestrel works.
Running a different app but targeting .NET Core 2.0 and publishing as framework-dependant works flawlessly on IIS.
But between these two apps: the codebase is the same, the IIS website and application pool is the same and we even emptied out the app directory and used the same one.
Due to these points the only difference seems to be the net461 app's executable file.
We do not have full control over the Windows Server where we're trying to deploy but we do have administrator accounts. The current assumption is that the issue lies within permissions - maybe AD group policies, antivirus blocking the file but we're still awaiting response from the client's sysadmins. Meanwhile we haven't been able to replicate the error code ‘0x80004005: 1’ while trying to setup these restrictions on our development machines.
Here's an incomplete list of ideas and points about the issue we've tried while problem solving:
The initial app (targeting net461) works flawlessly on IIS when
deployed to other servers (Windows 10 Enterprise, Windows Server 2012
R2 Datacenter).
Reinstalling different versions of ASP.NET Core/.NET Core: Runtime & Hosting Bundle.
Setting NTFS permissions to the dotnet folder.
Changing IIS application pool identity to an administrator account.
Restarting the server.
Going over local group and security policies.
Going over the antivirus settings and logs.
Trying to deploy on a brand new server (same OS, same bloat).
All ideas/comments are greatly appreciated. The more obscure the better.
EDIT:
Since this got flagged as a possible duplicate of ASP.NET Core 0x80004005 I need to specify why that is not a duplicate.
That referenced project is an older version of ASP.NET Core (last use
of project.json was in 2016)
That referenced project targets .NET Core and not .NET 4.6.1. It is mentioned here as well that targeting .NET Core works on IIS in regard to this issue.
Selected answer points out that they fixed it by:
Turns out that this was result of needing to install some windows
updates and this problem:
api-ms-win-crt-runtime-l1-1-0.dll is missing when opening Microsoft
Office file
Rather than install the version discussed in the above issue I whet
into Programs and Features and ran a repair on Microsoft Visual C++
2015 Redistributable.
but the installation of Microsoft Visual C++ 2015 Redistributable is one of the steps in the official setup guide and it is mentioned here as well that the official guide has been followed during the setup process.
We have gone over that post and tried to repair and reinstall the Microsoft Visual C++ 2015 Redistributable runtime components and this did not fix the issue.
If anyone stumbles upon this post in the future:
The problem was indeed in the server's antivirus. It wasn't directly blocking the app's executable but its call to a class library in the system folder. This termination did not raise any of the usual alarms.
The application "C:\inetpub\apps\AppFolder\App.exe" attempted to load the library "bcrypt.dll" by calling the function "LoadLibraryExW". The operation was blocked and the application terminated.
After switching the MVC blank app to a completely blank Hello-World app it ran successfully.

SharePoint 2010 Web Front End Application Server dll deployment

We have a SharePoint farm configured with one SQL server, an Application server and one Web Front End. All assemblies run from the GAC on the WFE, except one. This one dll has to be forced (using gacutil) into the GAC on the App server in order to see changes in our SharePoint application.
My question is, what determines that this dll must run on the App server and not with the rest on the WFE? I assume because of this, I cannot debug in Visual Studio from the WFE. Do I have to install Visual Studio on the App server as well?
When setting up a timer job, it's possible to use the constructor to specify a specific server. That's likely how things got set up for this solution and associated .dll file. More info on that here:
http://www.martinhatch.com/2009/08/sharepoint-timer-jobs-and-multiple.html
As for adding Visual Studio to servers on your farm, if this is your production farm I do not recommend doing this. If you really need to debug in production (you really, really should have a development box set up for this), do it via remote debugging.

Deploying Com Interop into sharepoint server

I have a com interop dll (zkemkeeper.dll) that i have to register and use, i wonder how can i deploy that to the SharePoint server using SharePoint package?
You cannot deploy COM or COM Interop DLL to SP farm by SP solution. You need to install the component on every SP server in the farm by other means.
Create an MSI installer to be executed on every machine. MSI can be rolled out automatically too.
Provide a PowerShell script to be executed on every machine. PowerShell can be run remotely too.
Deploy a timer job with your solution that would be executed after the installation automatically or manually and would write to the registry the necessary COM stuff.
The first two options are my favourite because they shouldn't cause technical problems at the customer. The third one appears to promise installation without visiting every machine but the Timer Service user identity would need permission to write to the local registry which may not always be granted; and you'd have to resort to 1. or 2. anyway.
You should think about switching over to ASP.NET or .NET components on the long term. There are many components available in pure .NET that can be deployed by SP solutions. You can also consider pure HTML/JavaScript controls. I would probably go for the option 1. and invest the saved time to other architecture without the COM Interop.
--- Ferda
If you are using Sharepoint 2010, see How to: Add and Remove Additional Assemblies.
See also:
Deploying custom dll's in SharePoint 2010
Visual Studio - SharePoint 2010 - Include Assembly > Quick Question
Include 3rd party dll in the Sharepoint project while packaging the wsp
visual studio does not copy assembly into gac
How to install a WSP that has dependant assemblies?
Interop.zkemkeeper.dll regsvr32 error or InitializeComponent
Then you need done the step following:
Go to the website: http://www.zktechnology.com
Download ->Software Download->ZK Access for C3 panels
Extract files
Install
Open visual studio -> Solution Project->references-> Add Interop.zkemkeeper.dll
Good luck

IIS7.5 Debug vs Published permissions

I'm running Visual Studio 2010 and IIS 7.5
My site accesses a specified servers hardware for some statistical analysis.
When I debug my site in Visual Studio, I can access other servers hardware information with now issue. When I publish the site to IIS running as ASP.Net 4.0 appPool because the site is written under the 4.0 framework, the hardware retrieval fails. (note: when I run the site and analyze the local machine hardware, it works perfectly... the problem lies in analyzing another machine on the network.)
My question is, What is the difference in permissions a site is running under when debugging in Visual Studio in comparison to a published site in IIS 7.5?
Things I've tried...
Changing the app pool identity to every possible built in option, and my own domain profile, which is local admin on the machine I'm trying to retrieve hardware info about.
Changing the user that access the file directory of the website.
Changing app pools period. (The site has to run under .net 4.0, or else it barks out bad things).
I'm thinking I may need to install the site directly on the server that's being analyzed, but I find it odd that I can get all the data from other machine when I'm debugging. Any insight someone could bring would be greatly appreciated. Thanks!!
This answer is, in some cases, you have to add the appPool identity running the site to the "Performance Monitoring" group for the local machine in order to allow an ASP.NET site access the server's local hardware resources...

Custom Web service wrapper for SharePoint 2010?

Our team has found there are some things that can't be done in the out of box SharePoint web services, so we've decided to build our own web service wrapper, to wrap around Microsoft.SharePoint.dll and Microsoft.Office.Server.UserProfiles.dll.
My problem is, those dlls are 64 bit, so the web service must be 64 bit. When I set the project to x64 bit, asp.net throws BadImageFormatException.
Is there a working web service that can call the SharePoint 2010 native libraries that I could use to see a work around, or does anybody know a work around? Most grateful!
How are the Microsoft dll's referenced? If they are in the web services's /bin folder, remove them there, so .net attempts to load them from the GAC.
Ive developed several wrappers and never had a 32/64 bit issue when i deployed the service to SharePoint.

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