Do not understand error message when installing downloaded updates.

Dell Inspiron B-120 Laptop; Windows XP I downloaded 5 "Urgent" updates with no problem. But, when I opened them to install, they all gave me the same error message which is copied below...

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PLATFORM VERSION INFO
    Windows             : 5.1.2600.196608 (Win32NT)
    Common Language Runtime     : 2.0.50727.3623
    System.Deployment.dll         : 2.0.50727.3053 (netfxsp.050727-3000)
    mscorwks.dll             : 2.0.50727.3623 (GDR.050727-3600)
    dfdll.dll             : 2.0.50727.3053 (netfxsp.050727-3000)
    dfshim.dll             : 4.0.31106.0 (Main.031106-0000)

SOURCES
    Deployment url            : file:///C:/Download/7-1-11/DellDriverDownloadManager.application

ERROR SUMMARY
    Below is a summary of the errors, details of these errors are listed later in the log.
    * Activation of C:\Download\7-1-11\DellDriverDownloadManager.application resulted in exception. Following failure messages were detected:
        + Configuration system failed to initialize
        + Unrecognized configuration section system.serviceModel. (c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config line 134)

COMPONENT STORE TRANSACTION FAILURE SUMMARY
    No transaction error was detected.

WARNINGS
    There were no warnings during this operation.

OPERATION PROGRESS STATUS
    * [7/1/2011 10:26:55 PM] : Activation of C:\Download\7-1-11\DellDriverDownloadManager.application has started.

ERROR DETAILS
    Following errors were detected during this operation.
    * [7/1/2011 10:26:55 PM] System.Configuration.ConfigurationErrorsException
        - Configuration system failed to initialize
        - Source: System.Configuration
        - Stack trace:
            at System.Configuration.ConfigurationManager.PrepareConfigSystem()
            at System.Configuration.ConfigurationManager.GetSection(String sectionName)
            at System.Configuration.PrivilegedConfigurationManager.GetSection(String sectionName)
            at System.Net.Configuration.WebRequestModulesSectionInternal.GetSection()
            at System.Net.WebRequest.get_PrefixList()
            at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
            at System.Net.WebRequest.Create(Uri requestUri)
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
            at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
            at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
            at System.Deployment.Application.DownloadManager.DownloadManifestAsRawFile(Uri& sourceUri, String targetPath, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation)
            at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestDirectBypass(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, SubscriptionState& subState, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation)
            at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestBypass(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, SubscriptionState& subState, IDownloadNotification notification, DownloadOptions options)
            at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
            at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
        --- Inner Exception ---
        System.Configuration.ConfigurationErrorsException
        - Unrecognized configuration section system.serviceModel. (c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config line 134)
        - Source: System.Configuration
        - Stack trace:
            at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
            at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
            at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
            at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)

COMPONENT STORE TRANSACTION DETAILS
    No transaction information is available.

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The trouble is that I have no idea what this means for me; so, I have no idea what to change/correct/react.  Deactivating my firewall had no effect and re-downloading had no effect either. 

...?