What could be different in ApplicationPoolIdentity vs Normal User browser surfing? - iis

My web server runs an exe file (3rd party) that captures the screen of a web browser (using the emulator of IE7/IE9). The screen contains java script Extjs control that presents two columns. each column contains an image.
1) when my user runs the exe to this url I get they images in order (1 column, 2 column)
2) when the web server runs the exe (AplicationPoolIdentity) I get they images in bad order (2 column, 1 column)
What could be the difference between two users (My user vs ApplicationPoolIdentity) that can cause this behavior?
I run IIS7.5
Windows 7 64bit
extjs 3

The user for the application pool was created when windows had localization setting set to a right to left language, that cause the java script control to change sides.
To remove the setting a had to manually delete the application pool user from c:\users directory and only then to recreate the application pool. (deleting the pool didn't help, user data stayed in c:\users)

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Windows 10 cannot associate file to clickonce application

I have a clickonce application which works fine on windows 7.
When it's being installed on a windows 10 machine, it seems that the specific file for our application cannot be properly associated to the clickonce application.
If I click right on the file, and choose "open with", I can see in the list "ClickOnce Application Deployment Support Library". But if I choose this option, I get a message saying "this application cannot be executed on your PC". If I decide to choose directly the .exe file of the clickonce application (C:\Users\xxx\AppData\Local\Apps...), it will not work properly (version & update detection).
I am able to install my application and I am able to run it properly from the start menu. The only thing not working is the file association. I have tried to uninstall, and reinstall, but it doesn't change anything.
Edit :
I have installed the application on another windows 10 machine, and everything works fine (including the file assocation "automatically when installed & when specifiying it manually"). So I think the problem is not "generic" for all windows 10 machines.
I was able to reproduce montueron's issue. After turning on logging (https://msdn.microsoft.com/en-us/library/dd996997.aspx) and setting the logging location (https://msdn.microsoft.com/en-us/library/ms404265.aspx), I was able to determine that the file association was being skipped: File association for ".tiff" skipped, since another application is using it.
Here is what I did to solve my problem on Windows 10. My goal is to associate my ClickOnce program, "Tif2PDF", with .TIF and .TIFF image files.
Create a unique file association in the ClickOnce Publish settings in Visual Studio 2017. I am not using .TIF at this time, we just want to create the appropriate registry entry under HKCU\Software\Classes\Tif2PDF which will get removed in the un-install process.
Properties->Publish->Options->File Associations.
extension=.tif2pdf
description=Tif2PDF
progID=Tif2PDF
icon=Resources\Tif2PDF.ico
In the Tif2PDF program startup process, we need to add registry settings when it is installed - only run when it is updated:
if ( System.Deployment.Application.ApplicationDeployment.IsNetworkDeployed
&& ApplicationDeployment.CurrentDeployment.IsFirstRun )
Computer\HKEY_CURRENT_USER\Software\GuardTech\PDFTool\Capabilities\FileAssociations
.tif="Tif2PDF"
.tiff="Tif2PDF"
These two entries tell windows to use the HKCU\Software\Classes\Tif2PDF entry for TIF and TIFF file types.
Tell Windows this is a registered application. This value points to the key created in step 2.
Computer\HKEY_CURRENT_USER\Software\RegisteredApplications
Tif2PDF="Software\Tif2PDF\Capabilities"
At this point, you should see an option in Windows Explorer under "open with" called "ClickOnce Application Deployment Support Library". It will work at this point, but let's add a label and icon.
Create key and values below.
string iconSourcePath == Path.Combine(System.Windows.Forms.Application.StartupPath, #"Resources\Tif2PDF.ico");
Computer\HKEY_CURRENT_USER\Software\Classes\Tif2PDF\Application
ApplicationIcon=iconSourcePath
ApplicationName="Tif2PDF"
You program will need to handle command line arguments a little differently
//Get the normal command lines arguments in case the EXE is called directly
List<string> argList = new List<string>(Environment.GetCommandLineArgs());
argList.RemoveAt(0); //Remove the application.EXE entry
// this is how arguments are passed from windows explorer to clickonce installed apps when files are associated in explorer
if (AppDomain.CurrentDomain.SetupInformation.ActivationArguments?.ActivationData != null )
{
argList.AddRange( AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData);
}
We should try to cleanup these registry settings when we un-install the program by following thedracle's post Custom action on uninstall (clickonce) - in .NET
I just created a test application as Administrator (Windows Forms Application) using Visual Studio 2015 (< 5 minutes)
1) Under Properties/Publish/Options/File Associations added an entry:
Extension: .abcd
Description: test
ProgID: 2
Icon: An icon file
2) Under Properties/Publish I pressed Publish Now and ran Setup
3) Created a text file, renamed it to test.abcd
It is working as expected under Windows 10, so you could create a test application / verify that it's working and see what the differences are compared to your existing application.. 32/64 bit, framework, signing etc.

ASP Error 0223 - TypeLib Not Found, intermittent, resolved after IIS restart

I'm currently in the process of migrating an ASP platform from Windows 2003 R2 IIS 6 web servers to Windows 2012 R2 IIS 8.5 web servers. I'm at the stage where I've migrated a number of sites across to two separate 2012 web servers, all looked great, clients and developers are happy... However the following error has presented itself after a few days hosting on one of the new servers.
Active Server Pages error 'ASP 0223'
TypeLib Not Found
/jobboard/conf/constants.vbs.inc, line 1
METADATA tag contains a Type Library specification that does not match any Registry entry.
The METADATA tag is below:
<!--METADATA TYPE="typelib" NAME="Microsoft ActiveX Data Objects 2.8 Library" UUID="{2A75196C-D9EB-4129-B803-931327F72D5C}" VERSION="2.8"-->
Restarting IIS on this server resolved the issue (albeit temporarily).
Subsequently the other 2012 web server in production presented the same error a couple of days later, again, restarted IIS and works for now.
I've checked the registry and the relevant tag exists with the right UUID and correct permissions.
It doesn't affect all sites on the server, only all sites in a particular application pool.
The application pools use a domain user identity and sites are split up into a number of shared pools.
I've now determined what was causing the above problem...
Our sites on IIS run in a number of shared application pools running as a domain user. We also have a Windows scheduler job which runs a number of scripts over night which also run as the same domain user.
It seems there are cases when this scheduler job runs it interferes with the IIS worker processes. When it completes and ends its user session it unloads the registry file in memory, which the w3wp.exe processes could also using.
This error is presented in the Event log...
Windows detected your registry file is still in use by other
applications or services. The file will be unloaded now. The
applications or services that hold your registry file may not function
properly afterwards. No user action is required.
Along with references to the w3wp.exe processes currently running.
It was replicated when I terminal serviced in as the domain user and logged out again after a period of time. The event log presented the error and the sites all bombed shortly afterwards.
Running the scheduled job as a different user has fixed this issue for us.
I remember having an include file for ADOVBS.inc with all the ADO constants inside and including it as a standard ASP include inside my global include file which is included on every page on the site.
This was before I used the META way of including the file.
So maybe a last resort is to revert to that method of loading in the ADO constants.
It seems like some sort of threshold is being hit, CPU/Memory?, which then prevents IIS caching/loading the file in from the registry. This then causes the error and a recycle of the pool. As no redirect is being done to the 500.100.asp error handler page which hides the error details from the user. It would suggest the error is in IIS and related to the server.
Thanks

Setting MaxWebConfigFileSizeInKB in IIS8.5

I have a web.config file that references a rewrites.config file that is used by the inbuilt IIS Rewrite module. However my rewrites.config file is larger than 250kb, so i have followed the advise on this post. However it appears that in IIS 8.5 (Windows Server 2012) these keys are ignored. I've search the interwebs and haven't been able to find much on IIS 8.5, anyone got any advice on how to increased the maximum.config size? Or alternatively split rewrites.config into smaller files?
You can just create the key.
Right click on the parent node in REGEDIT - add a new Key called Configuration. Then add a new DWORD for MaxWebConfigFileSizeInKB (you'll probably want to switch to the decimal view) and set the value in KB.
I've just tested this on a rewritemap.config file 753kb in size on a server running IIS8.0 on Windows Server 2012 (I'm making an assumption here that this won't be terribly different from IIS 8.5). You'll need to set the appropriate key depending on whether this is 64bit or 32bit (see here). If in doubt set both. I can confirm that this value is being used since turning the value down to (for example) 10 triggers the error again.
Don't forget to restart the app pool.

IIS Error - It is not possible to run two different versions of ASP.NET

I'm getting this error thrown repeatedly on my IIS 6.0 server:
It is not possible to run two different versions of ASP.NET in the
same IIS process. Please use the IIS Administration Tool to
reconfigure your server to run the application in a separate process.
However, I ran an IIS MetaBase Analyzer to view all AppPools and AspNetVersions they're running and do not see any AppPools running different versions of AspNet. Is this a bug in IIS or is there definitely an AppPool running multiple versions of AspNet?
Thanks
Although it's an old question, for the benefit of future users who visit this yet unanswered question, here is the solution that worked for me.
In my case, the following worked.
Symptom :
The ASP.NET tab, for the "Default Website" node of the IIS Admin was showing a version of 1.1.
The ASP.NET tab, for my virtual directory application, was showing a version of 2.0 (which is the right one for my application).
Solution :
I changed the first one from 1.1 to 2.0. The application worked.
Cause :
The cause, however, seems "mysteriously unrelated", as it often happens in Windows. It was working fine with the same old (different) settings until a week back. What happened during the week, was that the machine A running the web server for my web application, had to unjoin a domain B and join another domain C, because the primary domain controller on B failed and had to be replaced with C. Why on earth would that affect IIS Admin or the web application hosted on A, and why it should generate this particular error is beyond me. Such a cause for this error seems undocumented.
It is not possible to run two different versions of ASP.NET in the same IIS process. This would mean you have multiple applications (either sites or virtual directories) using the same appPool, but one of these sites/applications has a different .NET version setting in the .NET tab. You would have to create another appPool to use different .NET versions.
To create another appPool and associate it to your application do (Windows Server 2003):
1.Click Start, point to All Programs, point to Administrative Tools, and then click Internet Information Services (IIS) Manager.
2.In Internet Information Services (IIS) Manager, expand , right-click Application Pools, point to New, and then click Application Pool
3.Right-click on application that uses a different .NET version and click on Properties
4.On menu Virtual Directory choose in the item Application Pool the application pool that you created in point 2.
Regards!

Application run as service is not appearing

I have two PCs and I'm logged in both with same user id(have the administration rights). I have installed the service on both PCs. I'm getting a strange issue:
1. If I remove both PCs from network then starting the service makes application appear on both the PCs.
2. If both PCs are in network then One PC shows application while on other it does not appear. however, if I check the task manager, application is running fine.
I find out following things:
1. On PC where application appears, active desktop is "Default"
2. On PC where application does not appear, active desktop is "Screen-Saver". I checked that non of the screen-saver are active and running on this pc.
3. Now If I remove the PCs from network and re-connect then behaviour just got switched. I.e. where it was not working start appearing application but not on other PC.
Why one PC is in screen-saver mode while other in Default? Is this has to do with common login id? How can I work around this issue?
These two services are independent of each other. These service createprocess() which invokes a VB application.
Another question I have is that if I'm not in N/w and run the service then it VB GUI appears properly. If I use remote desktop to start the service, the service appears properly but the VB GUI does not appear :-(
The active desktop at this moment is 'winlogon'. I'm not able to make the VB GUI visible if I give lpdesktop = "WinSta0\Desktop" or "WinSta0\winlogon" or "WinSta0\screen-saver". Please note that I'm accessing the system where service is physically running through remote desktop.
Can someone let me know what I needs to do to make VB GUI appear remotely if I start the service remotely?

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