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Silverlight isn't recognised

    Question

  • Hello,

    Help! Silverlight won't install on my machine!

    I've been through the install process at http://www.microsoft.com/silverlight/install.aspx many MANY times - each time it tells me Silverlight has been installed successfully, When I hit back to return to the page (i.e. http://www.popfly.ms/shell.aspx?projectType=mashup) that orignally sent me to the SIlverlight installation page, I get redirected back to the installation page. Same happens if I start a new browser. The same happens if I go to any other page that requires Silverlight installed.

    If I look in "Programs and Features" I can see that "Microsoft Silverlight" is listed.

    I am using IE 7 on Vista Ultimate.

    Help! What's going on? Why won't any Silverlight sites recognise that I have Silverlight installed even though I (apparently) DO have it installed.

    Thanks

    Jamie

    Tuesday, May 29, 2007 2:51 AM

Answers

  • This is probably cause by old registry keys. Running the following commands in a command line window should fix it. 

    reg delete HKCR\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKCR\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    reg delete HKCU\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKCU\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    reg delete HKLM\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKLM\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    Tuesday, May 29, 2007 8:55 PM

All replies

  • Can you test if Silverlight content works when you run IE as admin?

    Tuesday, May 29, 2007 12:07 PM
  • ahaa, I had the same problem but when I ran IE as an admin and now silverlight apps run correctly. hmmmm. to me this is still bad. How do I fix it?

    Tuesday, May 29, 2007 8:42 PM
  • This is probably cause by old registry keys. Running the following commands in a command line window should fix it. 

    reg delete HKCR\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKCR\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    reg delete HKCU\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKCU\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    reg delete HKLM\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8

    reg delete HKLM\SOFTWARE\Classes\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A}\0.8.5.0

    Tuesday, May 29, 2007 8:55 PM
  • You da man Daniel. It was the first one.

     

    Here I go with popfly!!

     

    -Jamie

     

    Tuesday, May 29, 2007 10:15 PM
  • I have the same problem, but none of the registry keys exists on my computer. It it also Vista ultimate and IE7. It worked before and seems to be got lost. I uninstalled and reinstalled several times but still get the offer to install when I try to open a page with silverlight content.

    Even tried 1.1 but same result.

    Sunday, October 21, 2007 9:04 AM
  • Can you see the animated image on this page: http://www.microsoft.com/silverlight/getassistance.aspx ?

    Monday, October 22, 2007 1:28 PM
  • No, the image does not move it is just a red circle with a cross inside

    Thursday, October 25, 2007 1:21 AM
  • Can you grant yourself read permissions to these keys and try again:

    HKCR\AgControl.AgControl
    HKCR\AgControl.AgControl\CLSID
    HKCR\AgControl.AgControl\CurVer

    Thursday, October 25, 2007 12:58 PM
  • there´s full control for everyone on these keys. But I have another key called AgControl.AgControl.1.0. And it´s still not working.

     

    Thursday, October 25, 2007 3:29 PM
  • Can you post a Process Monitor (http://www.microsoft.com/technet/sysinternals/processesandthreads/processmonitor.mspx) log of IE failing to load some Silverlight content?

    Thursday, October 25, 2007 4:06 PM
  • How can I post this? (pml file)

    Thursday, October 25, 2007 4:19 PM
  • I would just use whatever free file hosting you like. Here's an example http://www.mediafire.com/
    Friday, October 26, 2007 12:21 AM
  • Friday, October 26, 2007 1:37 AM
  • I'm having trouble finding any kind of Silverlight registry activity. Is it possible you are running 64 bit IE, or have ActiveX controls turned off?

    Friday, October 26, 2007 1:34 PM
  • no, i am running 32bit windows. Where should I look for the ActiveX controls? As fa as I can see, art least I turned everything on with confirmation. I am running Vista SP1 beta now. Could that be a problem?

    Friday, October 26, 2007 1:47 PM
  • You can see the specific status of Silverlight by clicking Tools -> Manage Add-ons -> Enable or Disable Add-ons. "AgControl Class" should be set to enabled. You can check the general status of ActiveX control with Tools -> Internet Options -> Security.

    Friday, October 26, 2007 2:44 PM
  •  

    I´ve got 2. npcrtl.1.0.20724.0.dll and npcrtl1.0.20926.0.dll. But whatever of both I activate or deactivate, there is no change to the situation.
    Friday, October 26, 2007 2:52 PM
  • That's a little strange, can you search through your registry for this: "32C73088-76AE-40F7-AC40-81F62CB2C1DA" and post the keys that have that (if any)?

    Friday, October 26, 2007 3:06 PM
  • here´s my collection:

    http://www.mediafire.com/?31j5zf20xzi

    Friday, October 26, 2007 3:22 PM
  • Do these registry entries stick around after an uninstall?

    Friday, October 26, 2007 3:41 PM
  • these stood firm in place:

    http://www.mediafire.com/?cvmmnvb3ijs

    I deleted them and made a new install. But it is still not working

    Saturday, October 27, 2007 4:17 AM
  • here is a log from the msi:

     

    MSI (c) (F8:D8) [10:30:30:739]: Final Patch Application Order:
    MSI (c) (F8:D8) [10:30:30:739]: {D01030A1-47CE-44E8-A944-BCC73FB80513} -
    === Logging started: 27.10.2007  10:30:30 ===
    Action 10:30:30: INSTALL.
    Action start 10:30:31: INSTALL.
    Action 10:30:31: LaunchConditions. Evaluating launch conditions
    Action start 10:30:31: LaunchConditions.
    Action ended 10:30:31: LaunchConditions. Return value 1.
    Action 10:30:31: FindRelatedProducts. Searching for related applications
    Action start 10:30:31: FindRelatedProducts.
    Action ended 10:30:31: FindRelatedProducts. Return value 0.
    Action 10:30:31: ValidateProductID.
    Action start 10:30:31: ValidateProductID.
    Action ended 10:30:31: ValidateProductID. Return value 1.
    Action 10:30:31: CostInitialize. Computing space requirements
    Action start 10:30:31: CostInitialize.
    Action ended 10:30:31: CostInitialize. Return value 1.
    Action 10:30:31: FileCost. Computing space requirements
    Action start 10:30:31: FileCost.
    Action ended 10:30:31: FileCost. Return value 1.
    Action 10:30:31: CostFinalize. Computing space requirements
    Action start 10:30:31: CostFinalize.
    Action ended 10:30:31: CostFinalize. Return value 1.
    Action 10:30:31: MigrateFeatureStates. Migrating feature states from related applications
    Action start 10:30:31: MigrateFeatureStates.
    Action ended 10:30:31: MigrateFeatureStates. Return value 0.
    Action 10:30:31: ExecuteAction.
    Action start 10:30:31: ExecuteAction.
    MSI (s) (68:10) [10:30:31:355]: Final Patch Application Order:
    MSI (s) (68:10) [10:30:31:355]: {D01030A1-47CE-44E8-A944-BCC73FB80513} -
    Action start 10:30:32: INSTALL.
    Action start 10:30:32: LaunchConditions.
    Action ended 10:30:32: LaunchConditions. Return value 1.
    Action start 10:30:32: FindRelatedProducts.
    Action ended 10:30:32: FindRelatedProducts. Return value 0.
    Action start 10:30:32: ValidateProductID.
    Action ended 10:30:32: ValidateProductID. Return value 1.
    Action start 10:30:32: CostInitialize.
    Action ended 10:30:32: CostInitialize. Return value 1.
    Action start 10:30:32: FileCost.
    Action ended 10:30:32: FileCost. Return value 1.
    Action start 10:30:32: CostFinalize.
    Action ended 10:30:32: CostFinalize. Return value 1.
    Action start 10:30:32: MigrateFeatureStates.
    Action ended 10:30:32: MigrateFeatureStates. Return value 0.
    Action start 10:30:32: InstallValidate.
    Action ended 10:30:32: InstallValidate. Return value 1.
    Action start 10:30:32: RemoveExistingProducts.
    Action ended 10:30:32: RemoveExistingProducts. Return value 0.
    Action start 10:30:32: InstallInitialize.
    Action ended 10:30:32: InstallInitialize. Return value 1.
    Action start 10:30:32: ProcessComponents.
    Action ended 10:30:32: ProcessComponents. Return value 1.
    Action start 10:30:32: UnpublishFeatures.
    Action ended 10:30:32: UnpublishFeatures. Return value 1.
    Action start 10:30:32: RemoveRegistryValues.
    Action ended 10:30:32: RemoveRegistryValues. Return value 1.
    Action start 10:30:32: RemoveDuplicateFiles.
    Action ended 10:30:32: RemoveDuplicateFiles. Return value 1.
    Action start 10:30:32: RemoveFiles.
    Action ended 10:30:32: RemoveFiles. Return value 1.
    Action start 10:30:32: InstallFiles.
    Action ended 10:30:32: InstallFiles. Return value 1.
    Action start 10:30:32: PatchFiles.
    Action ended 10:30:32: PatchFiles. Return value 1.
    Action start 10:30:32: DuplicateFiles.
    Action ended 10:30:32: DuplicateFiles. Return value 1.
    Action start 10:30:32: WriteRegistryValues.
    Action ended 10:30:32: WriteRegistryValues. Return value 1.
    Action start 10:30:32: RegisterUser.
    Action ended 10:30:33: RegisterUser. Return value 0.
    Action start 10:30:33: RegisterProduct.
    Action ended 10:30:33: RegisterProduct. Return value 1.
    Action start 10:30:33: PublishFeatures.
    Action ended 10:30:33: PublishFeatures. Return value 1.
    Action start 10:30:33: PublishProduct.
    Action ended 10:30:33: PublishProduct. Return value 1.
    Action start 10:30:33: InstallFinalize.
    Action ended 10:30:33: InstallFinalize. Return value 1.
    Action ended 10:30:33: INSTALL. Return value 1.
    Action ended 10:30:33: ExecuteAction. Return value 1.
    Action ended 10:30:33: INSTALL. Return value 1.
    === Logging stopped: 27.10.2007  10:30:33 ===
    MSI (c) (F8:D8) [10:30:33:206]: Product: Microsoft Silverlight -- Configuration completed successfully.

    MSI (c) (F8:D8) [10:30:33:278]: Windows Installer reconfigured the product. Product Name: Microsoft Silverlight. Product Version: 1.0.20926.0. Product Language: 1033. Reconfiguration success or error status: 0.

    Saturday, October 27, 2007 4:38 AM
  • I

    You can see the specific status of Silverlight by clicking Tools -> Manage Add-ons -> Enable or Disable Add-ons. "AgControl Class" should be set to enabled. You can check the general status of ActiveX control with Tools -> Internet Options -> Security.

     I have the same problem with Silverlight, and also none of the keys to delete were present on my Vista Ultimate (32 Bit).

    When I go to Tools -> Manage Add-ons -> Enable or Disable Add-ons, AgControl Class is ONLY listed under the "Addins that run without requiring permission" tab.

    Is that correct?

    Sunday, October 28, 2007 10:17 AM
  • As fa as I can see is it listed under:

    run without requiring permission

    and under

    add-ons used by internet explorer (I hope this is the right translation from my german browser)

    the general status of activex controls seem to be ok.

    Sunday, October 28, 2007 10:32 AM
  • Phreaks, your problem is most likely explained by the problem you described in this thread http://silverlight.net/forums/t/5765.aspx once you assign yourself read permissions to those keys I would expect it to work. Unfortunately I can't help you troubleshoot the registry editor.

    mkuehngoe, now that you have removed the registry keys, do you still have two entries in your IE add-ons?

    Sunday, October 28, 2007 12:46 PM
  • I removed the keys and tried a new install. After that I have both entires in IE add-ons. Should I try to uninstall, remove all keys and look again?

    Sunday, October 28, 2007 12:49 PM
  • After uninstall, the entries are gone. After a new install they are back again.

    Sunday, October 28, 2007 1:21 PM
  • Do you have any registry entries with npctrl.1.0.20724.0.dll in them? I would expect you have only one under HKCR\Typelib\{283C8576-0726-4DBC-9609-3F855162009A}\1.0\0\win32\. If that's the case can you uninstall, delete HKCR\Typelib\{283C8576-0726-4DBC-9609-3F855162009A}\, install and try again?

    Monday, October 29, 2007 1:40 PM
  • No, I don´t have anything like this. Searched the whole registry

    Monday, October 29, 2007 3:57 PM
  • So you have no registry entires that have "npctrl.1.0.20724.0.dll" in them, but you do have an entry in your Manage Add-ons screen with that file name in it?

    Monday, October 29, 2007 4:00 PM
  • yes this is true. I´ve got two entries in IE, but none in the registry

    Monday, October 29, 2007 4:44 PM
  • I found this one: C:\Program Files\Microsoft Silverlight\npctrl.1.0.20926.0.dll under HKEY_CLASSES_ROOT\CLSID\{DFEAF541-F3E1-4c24-ACAC-99C30715084A}

    Tuesday, October 30, 2007 2:40 AM
  • I would expect that registry key. Your Manage Add-ons window is behaving pretty strangely, I'm working on finding the right person in the IE team who can answer questions about that, it may take a bit.
    Tuesday, October 30, 2007 3:08 AM
  • Phreaks, your problem is most likely explained by the problem you described in this thread http://silverlight.net/forums/t/5765.aspx once you assign yourself read permissions to those keys I would expect it to work. Unfortunately I can't help you troubleshoot the registry editor.

    mkuehngoe, now that you have removed the registry keys, do you still have two entries in your IE add-ons?

    Fixed.

    I didn't have permissions to HKCR\AgControl.AgControl reg keys.

    Why, I dunno. But manually giving myself permissions fixed silverlight.

    Tuesday, October 30, 2007 11:05 PM
  • I had to reinstall Vista because my mainboard went down. After that everything is fine so far, but I am waiting for SP1 beta in the moment. Hope to see it again by windows updates. If silverlight vanish again I let you know.

    I use my old profile, so I think the problem must have been out of HKCU

    Thursday, November 01, 2007 2:43 PM
  • Hi

    I'm having this problem too in Firefox.

    This page:

    http://www.microsoft.com/silverlight/getassistance.aspx

     Works just fine in FF.

    Yet home page wants to keep installing it.

    Checked all those keys and everything is fine.

    Any ideas?

     Thanks,

    Will
     

    Tuesday, November 13, 2007 1:18 AM
  • What is your home page?
    Tuesday, November 13, 2007 11:03 AM
  • I simply meant http://www.microsoft.com/silverlight/ . Thanks! 

    Tuesday, November 13, 2007 3:50 PM
  • Do you have any plugins that block Flash content installed?

    Tuesday, November 13, 2007 5:10 PM
  • ok yes its a bug in noscript addon

    thanks!

    update: its been fixed in noscript version 1.1.8.2 :)

     

    Tuesday, November 13, 2007 9:06 PM