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by nemolar / September 15, 2008 11:14 AM PDT

I have tried several methods for attempting to download and instal Silverlight, none of which have worked. I am running Windows XP SP3 and IE7.

Always BEFORE attempting each of these methods, I have completed a "Search" of my computer for all things "Silverlight". Then I went to each of those items under "My Computer\C Drive" and deleted each one manually.

Interestingly, there is NEVER anything listed under "C/Program Files", despite the fact that "Microsoft Silverlight" DOES APPEAR listed under "Add/Remove Programs". I have tried to "Remove" Silverlight from "Add/Remove Programs", but I get the message that it cannot find the "patch".

As well, always BEFORE I tried each of these methods, I have "Shut Down" and re-started my computer.

The methods I have tried are as follows:

1. I have gone directly to the Microsoft website, and tried to download the MAIN Silverlight program that way. It appears to successfully download the 1.37 MB file, but after I click on the "Instal" button, I get the message "Unable to Instal".

2. I have clicked on "Microsoft Update" under my Start button. When I get to the website, it says that there is an UPDATE for Silverlight available, but that it is 0 KB in size. When I try to "Instal" that update, I get the message that "Installation Failed".

I think that the problem might be that the Microsoft website thinks that Silverlight is already instaled on my computer, because it DOES appear under "Add/Remove Programs", even though it appears NO WHERE else on my computer - not even under "C/Program Files". Is there some way that I can remove Silverlight from the "Add/Remove Programs" list (note that I mentioned before that I cannot do that by simply clicking on the "Remove" button).

Or is there something else I should be doing?

Any assistance you can provide to me in this regard will be greatly appreciated.

In your response, please write as SIMPLY as CLEARLY and COMPLETELY as possible.

Thanks so much again.

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You may have to
by MarkFlax Forum moderator / September 15, 2008 8:00 PM PDT
In reply to: Silverlight

goto Microsoft's support for more help, but this is what I have seen.

1] Searching my own system, (Dell, XP Pro, 220 GB hard disk, 2GB RAM, SP3), for "Silverlight" I found entries as follows;

* Silverlight in C:\Documents and Settings\{Username}\Local Settings\Application Data\Microsoft\Silverlight
* C:\Program Files\Microsoft Silverlight

2] Have you previously installed any earlier versions of Silverlight, such as ""WPF/E" (codename) Community Technology Preview (Dec 2006), "WPF/E" (codename) Community Technology Preview (Feb 2007)"?

If so, that should appear in your Add/Remove Programs and that needs to be uninstalled as well.

More info on that here;

3] Silverlight 2 works best in 32 bit systems, not 64 bit.

4] Other than that meager contribution, I don't know. Perhaps Microsoft Support is where you need to go.

But others here may have more specific advice.

Good luck.


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by nemolar / September 15, 2008 11:59 PM PDT
In reply to: You may have to

My computer is also a Dell. Despite the fact that a "Search" on my system did not reveal Silverlight under "C:\Documents and Settings", it was, in fact, there and I removed it. However, Silverlight still does not appear under "C:\Program files".

I have never installed any previous versions of Silverlight, such as those you mentioned, and neither or those appear under "Add/Remove Programs" on my computer.

My computer is a 32-bit system.

I think that the reason I can't do a proper download and instal of Silverlight is because it "sees" that it is still listed under my "Add/Remove Programs". As I menitoned previously, when I try to "Remove" Silverlight from there, I get the message that it "cannot find the patch".

Therefore, I was wondering if there was some way to remove an item from "Add/Remove Programs" when the "Remove" button there does not work.

Thanks so much for your help, Mark.

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by MarkFlax Forum moderator / September 16, 2008 2:59 AM PDT
In reply to: Silverlight

I'm not sure how much more I can help with this.

Microsoft has guidance and instructions for removing items from the Add/Remove Programs listing, but it involves delving into the registry, and that's one thing I am always wary of suggesting. You probably know that making incorrect changes to the registry can seriously affect the system, and in fact make it unusable.

However, it's here;

Please note the section about backing up the registry, and how to restore from the backup.

I wonder if contacting Microsoft would not be the better idea in this case.


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by nemolar / September 16, 2008 4:32 AM PDT
In reply to: Hmmm.

I followed the instructions on the Microsoft site on how to delete a program so that it is also removed from the Add/Remove Programs list, and initially it appeared that I might have been successful in that regard. However, when I went back to the Add/Remove Programs list, Silverlight was STILL listed, HOWEVER, the "Change" and "Remove" buttons for Silverlight were missing. Interesting...

Then I ran Uniblue's "Registry Booster 2" program to clean the registry, but that did not remove Silverlight from the Add/Remove Programs list either. I then did a "Disk Clean-up", ran Uniblue's "Speed Up My PC 3", and deleted all "Browsing History" under "Internet Options".

But Silverlight remains listed under "Add/Remove Programs" and another try at downloading and installing Silverlight from scratch again remains unsuccessful. Another try at "Microsoft Update" still reveals ONLY that I have a Silverlight update available which is 0 KB in size.

Thanks so much for your help, however. It was very helpful to at least know how to delete a program from the "Add/Remove Programs" list, even if it was unsuccessful this time.

If anyone else has any ideas, I would be grateful.

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Just a thought.
by MarkFlax Forum moderator / September 16, 2008 5:43 AM PDT
In reply to: Silverlight

Did you reboot the computer after making these changes?

Registry changes don't usually take effect until a reboot, and the system may still think that Silverlight is still present somewhere.

Not that I believe computers think. That would be scary! Sad


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by nemolar / September 17, 2008 10:29 AM PDT
In reply to: Just a thought.

Yes, always after deleting stuff, I reboot to make sure it's gone before trying anything new.

Thanks, Mark, for reminding me, though.

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I have just one other idea
by MarkFlax Forum moderator / September 17, 2008 8:24 PM PDT
In reply to: Silverlight

Hi again, I know you're hoping for other advice, but looks like you're stuck with me, Sad

I do have another option. Silverlight is a browser enhancement. This is what Microsoft say about it;

"Microsoft Silverlight is a cross-browser, cross-platform, and cross-device plug-in for delivering the next generation of .NET based media experiences and rich interactive applications for the Web. By using Silverlight's support for .NET, High Definition video, cost-effective advanced streaming, unparalleled high-resolution interactivity with Deep Zoom technology, and controls, businesses can reach out to new markets across the Web, desktop, and devices."

I believe that means it is a competitive plugin for Adobe's Flash.

Since it is mainly browser based, then it may be that your browser is the cause of the problem. You're using IE7 and IE is known to have difficulties with BHOs, (Browser Helper Objects), ActiveX, and 3rd party toolbars, like Yahoo, Google, etc.

These addons, or extensions, can also affect other components of Windows, because IE is so closely integrated into the OS with other Explorer components. We regularly suggest members delete all BHOs, ActiveX and so on when they report Internet Explorer problems.

Deleting BHOs is difficult. You normally need something like HiJackThis to do it. But IE7 has a useful option to "Reset" it to default, ie without any addons, etc. There are two such options, IE Tools > Options, and then in the Security and Advanced tabs. You could try that.

Also, I know Silverlight works well in the Firefox browser. I use it myself. If you wanted to try that, you could download FF3 from Mozilla, and then visit Microsoft's Silverlight site to install Silverlight 2 into that. (Silverlight 1 breaks Firefox 3).

I'm running out of ideas.


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by nemolar / September 21, 2008 1:44 AM PDT

I have a Dell computer, running Windows XP SP3. I have the usual security software: Windows Live One Care, Windows Defender, Spybot S & D, Spyware Blaster, Keyscrambler, etc. I keep my security software up to date, and run scans regularly.

I have been experiencing a problem recently and I'm not exactly sure how long it has been happening. Sometimes when I go to a webpage, and after the page has finished downloading, the page is abolutely blank. If I remember correctly, I believe that this occurs when I am being directed to a webpage that has something special on it, such as a page devoted specifically to an mp3 file or perhaps devoted specifically to a photo.

I wonder if this is somehow connected to my Silverlight problem. What do you think, Mark?

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If that is when using IE7
by MarkFlax Forum moderator / September 21, 2008 5:32 AM PDT
In reply to: Silverlight

then that again points to addons, and/or your security settings.

I would disable all the addons, reboot IE and try again.

The post below by rgfrtz makes a good point. You could try Microsoft's Installer Cleanup utility to clean out any corrupt Silverlight installation files. He gives a link to it in his post.


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Windows Installer Cleanup
by rgfitz / September 21, 2008 4:55 AM PDT
In reply to: Silverlight

I was having a problem updating Silverlight and finally had to remove it from the Windows installer cleanup list. Then the update installed and now shows Microsoft Sliverlight in the Add/Remove programs list.

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