ASP.NET Tab Missing

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re: ASP.NET Tab Missing

Erik van Ballegoij — Fri, 18 Apr 2008 00:03:48 GMT

One of the reasons the tab disappears is if you install VMWare on a 32 bit windows version. VMware actually tries to treat IIS as running on 64 bits, and adds a key 'Enable32BItAppOnWin64' in the IIS metabase, and set is to true. This will cause the ASP.NET tab to disappear. See this blogpost for more info: http://weblogs.asp.net/plip/archive/2006/05/25/Where_2700_s-the-ASP.NET-Tab-in-IIS_3F00_-It_2700_s-Missing_2100_-I_2700_ve-installed-.NET-2.0-_2E002E002E00_.aspx

re: ASP.NET Tab Missing

Tom — Fri, 18 Apr 2008 04:32:24 GMT

Erik,

That is a great point. Thanks for pointing out another situation where this could happen.

Interesting Finds: 2008.04.18

gOODiDEA.NET — Fri, 18 Apr 2008 05:57:23 GMT

.NET ASP.NET 应用程序的扩展策略 Web Adobe AIR for JavaScript Developers Pocketguide Are you sure your unload handler

Interesting Finds: 2008.04.18

gOODiDEA — Fri, 18 Apr 2008 05:58:15 GMT

.NETASP.NET应用程序的扩展策略WebAdobeAIRforJavaScriptDevelopersPocketguideAreyousureyourun...

re: ASP.NET Tab Missing

Franklin — Fri, 18 Apr 2008 06:58:53 GMT

Thank you for this. It fixed my issue

re: ASP.NET Tab Missing

Tom — Fri, 18 Apr 2008 07:16:25 GMT

Franklin, really glad to hear it.

ASP.NET Tab Missing

Website Magazine — Fri, 18 Apr 2008 21:18:30 GMT

A common issue we see customers having is after installing ASP.NET 2.0, the ASP.NET Tab is missing from

Missing ASP.NET Tab in IIS Management Console (the solution)

Never doubt thy debugger — Wed, 23 Apr 2008 13:13:55 GMT

Remember this problem ? Well, Tom (and Jeremy and Vandana) has a solution     Carlo Quote of

Missing ASP.NET Tab in IIS Management Console

Never doubt thy debugger — Wed, 23 Apr 2008 13:17:45 GMT

PROBLEM DESCRIPTION =================== On a Windows 2003 64bit machine with both .NET Framework 1.1

re: ASP.NET Tab Missing

Learning To Fly — Wed, 30 Apr 2008 23:41:59 GMT

Thanks for this. It saved me a system rebuild. The Enable32BitAppOnWin64 metabase value is non-existent on my PC, so the script died on line 41. I removed the whole section responsible for checking that metabase and re-ran, and it worked fine. It pointed out my registry permissions problem, and once I fixed that, the tab appeared on my PC.

re: ASP.NET Tab Missing

Tom — Thu, 01 May 2008 00:11:55 GMT

Learning,

I'm really glad it worked for you. Thanks for letting me know about the Enable32BitAppOnWin64 check.

re: ASP.NET Tab Missing

satpal gahir — Thu, 29 May 2008 18:24:25 GMT

didnt work for me i think:

FAIL: Registering Assembly failed with exit code: 100

re: ASP.NET Tab Missing

Tom — Thu, 29 May 2008 22:54:57 GMT

Satpal,

Not sure...

Now, the script calls RegAsm to register the assembly... If/when RegAsm fails, then you basically have to troubleshoot RegAsm failing. 100 is the exit code, but may not the actual, root cause win32 error code that RegAsm failed with. I have no idea if RegAsm sets the exit code to actual failing code or not. It's just the exit code returned by the exe when we called it from the script. But we do also log any console output. Did you have any textual output from the output file from RegAsm that says what was going on?

As for the script "working" or not, it's doing its job... The script identifies common known failure causes, and also, as a part of covering the other bases, calls some registration stuff, like RegAsm, regsvr32, etc... which would normally work, but in the case they fail, they would indicate why it was probably broken to start with. So, if one of these calls fails, it will report the error code (and log anything written to the console by the app), but it doesn't in turn start diagnosing why the registration program failed. In other words, it doesn't have logic to parse the text output and/or use the exit code against a database of all the reasons why RegAsm might fail to tell you what's happening. In fact, I haven't had a case where RegAsm failed, so I don't even have a handful of 'known' causes that we could check against.

In short, run RegAsm manually, using the command line from the script, and troubleshoot that as its own issue, since that's probably root cause, or closely related to it.

IIS ASP .NET Tab missing

Maurizio Tammacco's blog — Wed, 11 Jun 2008 11:54:24 GMT

Vi è mai capitato che nella console di amministrazione di IIS per una certa web application sparisse

re: ASP.NET Tab Missing

Zoya V. — Sun, 29 Jun 2008 05:31:52 GMT

I got the following messages in my asptabtest_log.txt and am not sure how to solve them:

Running aspmantst.exe to test the ASP.NET Tab snap-in

Attempting to create the object as CLSCTX_LOCAL_SERVER.

Create failed. hr: 80040154. QIhr: 80040154. GLE: 1008

Attempting to create the object as CLSCTX_REMOTE_SERVER to BUSCOEUS.

Create failed. hr: 80040154. QIhr: 80040154. GLE: 1008

Any help would be greately appreciated!

re: ASP.NET Tab Missing

Tom — Mon, 30 Jun 2008 06:20:37 GMT

Zoya,

I'll check on this and let you know.

re: ASP.NET Tab Missing

Rich — Tue, 08 Jul 2008 15:30:19 GMT

I get the same thing - any help would be appreciated.

Thanks

re: ASP.NET Tab Missing

Tom — Tue, 08 Jul 2008 19:10:14 GMT

Zoya and Rich,

REGDB_E_CLASSNOTREG. LOCAL_SERVER is going to use DCOM. Does the CLS_CTX_INPROC_SERVER work or fail?

Make sure you have the right version registered (64/32). The script should have done this for us, so I'm not sure why it would show not registered. Might want to run the registration steps manually and verify output.

re: ASP.NET Tab Missing

Rich — Tue, 08 Jul 2008 19:52:41 GMT

If failed

"Create failed. hr: 80070002 IIhr:80070002. GLE: 0

Everything above that Passed except like

"Learning To Fly" I had to remove the section that starts:GetObject("IIS://LocalHost/WsSVC/AppPools")

I get a failure on GetObject("IIS://LocalHost/W3SVC/AppPools")

"The System cannot find the specified path"

re: ASP.NET Tab Missing

Rich — Tue, 08 Jul 2008 20:06:40 GMT

I gave the wrong code above.

For CLSCTX_INPROC_SERVER it failed with 80131040

re: ASP.NET Tab Missing

Rich — Tue, 08 Jul 2008 20:25:39 GMT

Not sure if this will give you any helpful information but if I go to a machine with .NET installed and a working IIS and connect back to my machine in IIS the ASP.NET tab is there, but completely empty.

re: ASP.NET Tab Missing

Taylan — Mon, 14 Jul 2008 15:18:27 GMT

I had the same errors with Zoya. But a restart solved the problem and now I have the ASP.Net tab. Thanks to Tom.

re: ASP.NET Tab Missing

Pierz — Wed, 06 Aug 2008 10:02:46 GMT

Arrggh! I ran this on Windows Server 2003 (Virtual Server) and I got the ASP.NET tab, but now none of my websites run - "SERVICE UNAVAILABLE".

Error message in the event log:

ISAPI Filter 'C:\Program Files (x86)\Parallels\Plesk\isapi\isapi_redirect.dll' could not be loaded due to a configuration problem. The current configuration only supports loading images built for a AMD64 processor architecture. The data field contains the error number. To learn more about this issue, including how to troubleshooting this kind of processor architecture mismatch error, see http://go.microsoft.com/fwlink/?LinkId=29349.

HELP! My websites are DEAD and I have no idea how to fix, because I have no restore function on the VPS.

re: ASP.NET Tab Missing

Tom — Wed, 06 Aug 2008 19:37:43 GMT

Pierz,

This is complaining because you are trying to load a 32-bit filter and the web server is running in 64-bit mode. So either you need to unload this filter, or change your web server to run in 32-bit mode.

re: ASP.NET Tab Missing

Bill — Wed, 06 Aug 2008 20:28:02 GMT

Thanks for this tool, but I get these errors:

C:\download\tools\aspmantst.exe

Attempting to create the object as CLSCTX_LOCAL_SERVER.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 1008

Attempting to create the object as CLSCTX_REMOTE_SERVER to USBB-UITSALES.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 0

Attempting to create the object as CLSCTX_INPROC_SERVER.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 0

rebooted and tried again, but same error.

This is Server 2003 Enterprise Edition Service Pack 1.

Previously with framework 2.0 the tab was showing. But removed the .net framework 2.0 and installed 3.5 which has loaded 2.0 sp1, 3.0 sp1 and 3.5.

re: ASP.NET Tab Missing

Tom — Thu, 07 Aug 2008 00:49:53 GMT

Bill,

Try running this manually and see where it errors out. Maybe that will help. That error is:

The system cannot find the file specified.

re: ASP.NET Tab Missing

Rob — Thu, 07 Aug 2008 21:57:39 GMT

Tom,

I was just looking at your reply to Bill and was wondering what you were referring to as far as "running manually" I'm getting the exact same error as Bill. Thanks!!

re: ASP.NET Tab Missing

Tom — Thu, 07 Aug 2008 22:27:38 GMT

Rob and Bill,

Try running filemon at the same time as the tool and see what file we cannot find. That should help. My thinking is that it is the aspmmcext.dll file. And maybe uninstalling 2.0 caused that to happen. You can get filemon from:

http://technet.microsoft.com/en-us/sysinternals/bb896642.aspx

re: ASP.NET Tab Missing

Pierz — Fri, 08 Aug 2008 05:22:40 GMT

Running this script has caused me serious problems on our virtual server - my own fault for not backing up before running a script that makes diect writes to the registry. I thought that I'd fixed it with that MS kb article, but I've found that Plesk is not working any more, and there are problems with one of the websites as well. These erros all appear to relate to the fact that our server is 64 bit (Windows 2003). Running the 32-bit version of ASP.NET solved some problems, but PHP is falling over. Can you provide an outline of steps to take to reverse changes made by the script? I have already unregistered the ASPNET snap-in dll (no ASPNET tab any more, but that's the least of my problems now). If I can't sort this out soon, I may be forced to wipe clean and start again, which will cost lots of time and $$...

re: ASP.NET Tab Missing

Bill — Fri, 08 Aug 2008 18:24:22 GMT

Tom, looks like the file you tried to load is missing. thanks.

re: ASP.NET Tab Missing

Bill — Fri, 08 Aug 2008 23:16:11 GMT

Looks like it doesn't find:

<user>\Application Data\Microsoft\CLR Security Config\v2.0.50727.42\security.config

What's wierd is that add/remove pgms shows .net framework 2.0 sp1 (187MB), 3.0 sp1 (245MB) and 3.5 (25MB), but I do not find any folders under <user>\Application Data\Microsoft\CLR Security Config\

created when I loaded 3.5. in fact I do not find security.config in any folder newer than 2006 - v2.0.50215.44

http://www.microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en

re: ASP.NET Tab Missing

Bill — Fri, 08 Aug 2008 23:22:46 GMT

I see

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727

C:\WINDOWS\Microsoft.NET\Framework\v3.0

C:\WINDOWS\Microsoft.NET\Framework\v3.5

but the corresponding ..\Application Data\Microsoft\CLR Security Config

files were not added

re: ASP.NET Tab Missing

Tom — Mon, 11 Aug 2008 19:39:22 GMT

Pierz, do you have the asptabtest_log.txt? Did it show any errors? Did it run all registrations?

The short answer for backing out the changes is:

Running "regsvr32 /u mmcaspext.dll" and "regasm aspnetmmcext.dll /tlb:AspNetMmcExt.tlb /unregister" and setting the Enable32BitAppOnWin64 metabase property to what you need.

Bellow is a list of things the script does and some details on each. I hope this helps.

The only two registry keys that the script directly writes to is:

HKEY_CURRENT_USER\Software\Policies\Microsoft\Mmc\{fedb2179-2335-48f1-aa28-5cda35a2b36d}\Restrict_Run

and

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns\{fedb2179-2335-48f1-aa28-5cda35a2b36d}\About

The first key is used by the MMC to determine is a given snap-in or snap-in extension is allowed to run. The guid is specifically for the asp.net tab extension. It only modifys this value if the key/value existed in the first place. All this will do, if you set it back to 1 (assumming it existed in the first place), is tell MMC not to attempt to load the snap-in extension.

The second key is just the IID of the "About" dialog for asp.net tab extension. This only affects when you are in author mode and you go to the list of loaded extensions, highlight one, and want to see the "about" information. Original versions of mmcaspext.dll would write the wrong guid here, when you call regsvr32 on them, so the script just re-writes the guid that the 2.0 setup puts there on framework install. Unregistering the mmcaspext.dll, which you already did, should have removed this key anyway.

The other setting that the script directly changes, after prompting first, is the Enable32BitAppOnWin64 metabase property. If this is set to true the tab won't show up no matter what. If you need it set to true, then that's fine, but you won't see the tab.

Besides those things, the script calls registration methods from 3 framework components. regsvr32 on mmcaspext.dll, regasm on AspNetMmcExt.dll, and rundll32 on webengine.dll. The script checks to see if you have a Framework64 directory and if you do it runs them out of there, else it runs them out of the Framework directory.

mmcaspext.dll is a native MMC snap-in extension COM object. It's what actually gets loaded by the MMC. It checks the Enable32BitAppOnWin64 metabase property among other things, and decides whether to instantiate the AspNetMmcExt component or not. It provides the GUI interface, and delgates all actual configuration reads/writes to the AspNetMmcExt component. As you've already done, running regsvr32 /u on it would back this change out. Just make sure that you run it on the right one (64/32), or just run it on both.

AspNetMmcExt.dll is a managed assebly exposed via COM interop and registered to run in its own dllhost.exe surragte process. This is so that there are no framework version conflicts for any other managed component that may be running in the MMC process. regasm.exe is used to register COM interop assemblies. One of the things that is needed by the snap-in extension is the registered type library. You can unregister the assembly by running "regasm aspnetmmcext.dll /tlb:AspNetMmcExt.tlb /unregister". Again, from the right folder, which should be Framework64... in your case.

webengine.dll is, of course, the main asp.net ISAPI engine dll. Among its exported APIs are some used by setup. One is RegisterAspNetMMC. This is what the setup program calls instead of calling mmcaspext.dll and aspnetmmcext.dll directly. This routine manually sets the registration keys that calling regsvr32 on mmcaspext.dll does, and then it calls "regasm AspNetMmcExt.dll /tld:AspNetMmcExt.tlb". That is all this does. The script calls this just as a shotgun attempt to get things registered. There's nothing else that routine does.

So, to summarize, you can back out the changes by running "regsvr32 /u mmcaspext.dll" and "regasm aspnetmmcext.dll /tlb:AspNetMmcExt.tlb /unregister" and setting the Enable32BitAppOnWin64 metabase property to what you need.

re: ASP.NET Tab Missing

Pierz — Tue, 12 Aug 2008 06:24:36 GMT

Thank you Tom,

I appreciate the time you've taken to explain all this. The only bit I didn't know how to do was the unregistering of the type library. I have no idea how the script caused such a meltdown - I got Plesk to work again by assigning it to Apache and then back to IIS. It seems odd that Plesk was even affected, given that it is PHP-driven... Anyways, the ship is righted, we sail on! Thanks again - let it be a cautionary tale - always back up before running something you don't understand... :(

re: ASP.NET Tab Missing

Bill — Wed, 13 Aug 2008 01:26:02 GMT

fyi, the 3.5 install is consistent. on XP, it does not create the CLR Security folders either.

re: ASP.NET Tab Missing

Chuck — Thu, 21 Aug 2008 05:34:56 GMT

Tom

Trying to find the attachment (file) to this blog, unable to find a link

re: ASP.NET Tab Missing

Tom — Thu, 21 Aug 2008 18:50:47 GMT

Chuck,

Look for asptabtest.zip just below the first image.

re: ASP.NET Tab Missing

Bill — Tue, 26 Aug 2008 16:15:37 GMT

Tom,

is it a bug with the 3.5 framework that it does not create the CLR folders or is this the new approach? Do you plan to update asptabtest to include this scenario?

thanks, Bill

re: ASP.NET Tab Missing

Tom — Tue, 26 Aug 2008 16:49:54 GMT

Bill,

If you mean, like why 3.5 doesn't have mscorwks and things like that in it, then take a look at:

http://blogs.msdn.com/tom/archive/2008/01/23/net-framework-versions-and-sos-dll.aspx

re: ASP.NET Tab Missing

Bill — Wed, 27 Aug 2008 22:30:59 GMT

Tom,

Is it possible the CLR was removed when I removed .net framework 2.0? 3.5 includes 2.0 sp1 so I thought it would be sufficient. I search for CLR in MS Downloads but haven't found it separately. Windows update for server 2003 hasn't detected it missing or give me an update to load it. How can I reload the CLR?

Could asptabtest give a warning when it doesn't find <user>\Application Data\Microsoft\CLR Security Config\v2.0.50727.42\security.config that the CLR is missing?

thanks, Bill

re: ASP.NET Tab Missing

Tom — Thu, 28 Aug 2008 16:01:52 GMT

Bill,

So do you have a %windows%\microsoft.net\framework\v2.0.50727 folder at all now? That would be what to check for.

re: ASP.NET Tab Missing

Scott — Thu, 28 Aug 2008 18:52:31 GMT

Thank you this fixed my problem. I had a critical server down and thanks to you it is back up.

re: ASP.NET Tab Missing

Bill — Fri, 29 Aug 2008 16:55:00 GMT

yes, we have C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727

When I ran filemon asptabtest appeared to error when tried to access

<user>\Application Data\Microsoft\CLR Security Config\v2.0.50727.42\security.config

re: ASP.NET Tab Missing

Andy Tulip — Thu, 04 Sep 2008 12:33:12 GMT

There is no (obvious) attachment to this post!!!!!

re: ASP.NET Tab Missing

Tom — Thu, 04 Sep 2008 16:38:32 GMT

Andy,

Sorry it is hard to find. It is located at:

http://pwhpqg.bay.livefilestore.com/y1pqRdLa5dboL8c1RZTWVn-Cb0SQZ4_Y1ZxZJq13aDULl4mzF93GRe3r3axGlXskzKY8YDm9HqaT90/asptabtest.zip?download

re: ASP.NET Tab Missing

Bill — Fri, 05 Sep 2008 17:26:01 GMT

Tom,

do you think it is a bug in the 3.5 framework install that it doesn't include

<user>\Application Data\Microsoft\CLR Security Config\v2.0.50727.42\security.config

or should asptabtest be modified to not error when it doesn't find that file?

thanks, Bill

re: ASP.NET Tab Missing

Bill — Fri, 05 Sep 2008 23:03:52 GMT

uninstalled 3.5 and the 2.0/3.0 sp2's, installed 2.0 - similar errors, but the procmon doesn't show file errors that I can find. can I send you the procmon log file? you can send me an email to use at billzmail-temp at yahoo dot com. thank you.

PASS: The value of Enable32BitAppOnWin64 in metabase is set to: False

PASS: The current value of Restrict_Run is: 0

PASS: Successfully registered mmcaspext.dll

PASS: Successfully registered AspNetMMC

Microsoft (R) .NET Framework Assembly Registration Utility 2.0.50727.42

Types registered successfully

Assembly exported to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\AspNetMMCExt.tlb', and the type library was registered successfully

PASS: Successfully registered Assembly

Running aspmantst.exe to test the ASP.NET Tab snap-in

Attempting to create the object as CLSCTX_LOCAL_SERVER.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 1008

Attempting to create the object as CLSCTX_REMOTE_SERVER to USBB-UITSALES.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 0

Attempting to create the object as CLSCTX_INPROC_SERVER.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 0

re: ASP.NET Tab Missing

Blake — Mon, 20 Oct 2008 20:35:08 GMT

I had a problem with missing ASP.Net Tab. Check Add Standalone snap-ins. If IIS is missing, run regsvr32 %windir%\system32\inetsrv\inetmgr.dll

That did it for me

re: ASP.NET Tab Missing

Sanjeev Sircar — Wed, 05 Nov 2008 00:09:57 GMT

Please send me a copy of asptabtest.vbs.

my email id is sanjeev.sircar@credit-suisse.com

re: ASP.NET Tab Missing

Tony — Thu, 20 Nov 2008 23:55:07 GMT

Whenver i try to regsiter the type library with this command:

regasm aspnetmmcext.dll /tlb:AspNetMmcExt.tlb /register

I get a CLR: 80004005 error

If i try to unregister i get the same error.

Any thoughts as to what is causing the typelib to not register....??

Thx

re: ASP.NET Tab Missing

Rich — Wed, 17 Dec 2008 17:36:34 GMT

Finally got mine back - I was getting the same thing as Bill above, but saw this post:

http://www.eggheadcafe.com/forumpost.aspx?topicid=6&forumpostid=20592

and for me, there was a "non-2.0.0.0" entry here:

HKEY_CLASSES_ROOT\CLSID\{FD5CD8B1-6FE0-44F3-BBFB-65E3655B096E} \InprocServer32

I deleted it, ran aspmantst.exe and everything passed - opened up IIS and the TAB was backed.

re: ASP.NET Tab Missing

Krish — Mon, 23 Mar 2009 12:35:22 GMT

I ran the script on my XP Service Pack 2. Had to remove the 64bit check bit since I got the line 41 error.

Following is the output of the log file

PASS: The current value of Restrict_Run is: 0

PASS: Successfully registered mmcaspext.dll

PASS: Successfully registered AspNetMMC

FAIL: Registering Assembly failed with exit code: -2146232576

complains that - To run this application, you first must install one of the following versions of .NET Framework: v2.05.727

Contact your application publisher for instructions about obtaining the appropriate version of the .NET framework

The error comes on this line of the script

Set oExec = WshShell.Exec(strFrameworkFolder & "regasm.exe " & strFrameworkFolder & "AspNetMmcExt.dll /tlb:AspNetMMCExt.tlb")

Has anybody else encountered a similar issue? Were there able to resolve it?

PS: Last month I was forced to install Framework 3.0 as an update since it kept on reminding me and had to install it (company policy - keep up with updates). Was unhappy with Microsoft as they force this onto my machine

re: ASP.NET Tab Missing

Dan — Sat, 19 Sep 2009 20:10:40 GMT

I applied the VBS script, and I got the ASP.NET tab back, but now all sites on the server went down, with the application pools reporting "Unspecified error!"

Help!

re: ASP.NET Tab Missing

Tom — Sun, 20 Sep 2009 16:17:35 GMT

Dan,

Have you checked the asp.net tab to see what version of .NET it is running under? Maybe they switched and that is causing the problem.

re: ASP.NET Tab Missing

Ari — Tue, 29 Sep 2009 17:19:53 GMT

Tom, I have been following Bill and Rich since their issue seems to be closest to mine... I run the tool and everything works except:

Running aspmantst.exe to test the ASP.NET Tab snap-in

Attempting to create the object as CLSCTX_LOCAL_SERVER.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 0

Attempting to create the object as CLSCTX_REMOTE_SERVER to WR-DEV-02.

Create failed. hr: 80070002. QIhr: 80070002. GLE: 1008

-----------------------------------------------------

Those are the only failures in the whole set of checks in the vbs script. I didn't include the CLSCTX_INPROC_SERVER object results because it was created.

I did look into the Application Data\Microsoft\CLR Security Config folder and folder v1.1.4322 shows a security.config file while folder v2.0.50727.42 is empty.

My Microsoft.NET directory shows folders: v1.1.4322, v2.0.50727, v3.0 and v3.5. All of which are populated with what I would think appropriate.