I have a perplexing ClickOnce deployment problem.I have been scouring the internet to no avail. I've found several people looking for answers to the same problem but nobody posts a solution.MyApp is deployed at several offices.On some machines in one location I amgetting "Cannot Continue. The application may be improprerly formatted...." With the error log below. I know that the manifest is valid because I can install it on other machinesat this location and other locations not on this network. I have evaluated the following variables already: operation system, user priviledges, firewall access, and internet explorer settings. Ihave installedMyApp at this location on a Windows2003 server upstairs with the same administrative user I am logging in as downstairs. Themachines with the problem have the Novell client and GroupWise on them. Does that make a difference? What do I need to do to get this application to install properly. HELP!

PLATFORM VERSION INFO
Windows : 5.1.2600.131072 (Win32NT)
Common Language Runtime : 2.0.50727.832
System.Deployment.dll : 2.0.50727.832 (QFE.050727-8300)
mscorwks.dll : 2.0.50727.832 (QFE.050727-8300)
dfdll.dll : 2.0.50727.42 (RTM.050727-4200)
dfshim.dll : 2.0.50727.42 (RTM.050727-4200)

SOURCES
Deployment url: http://www.samplecompany.com/myapp/myapp.application

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://www.samplecompany.com/myapp/myapp.application resulted in exception. Following failure messages were detected:
+ Exception reading manifest from http://www.samplecompany.com/myapp/myapp.application: the manifest may not be valid or the

file could not be opened.
+ Manifest XML signature is not valid.
+ The system cannot find the file specified.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.

WARNINGS
There were no warnings during this operation.

OPERATION PROGRESS STATUS
* [9/12/2007 10:32:42 AM] : Activation of http://www.samplecompany.com/myapp/myapp.application has started.

ERROR DETAILS
Following errors were detected during this operation.
* [9/12/2007 10:32:43 AM] System.Deployment.Application.InvalidDeploymentException (ManifestParse)
- Exception reading manifest from http://www.samplecompany.com/myapp/myapp.application: the manifest may not be valid or the

file could not be opened.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.ManifestReader.FromDocument(String localPath, ManifestType manifestType, Uri

sourceUri)
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)
at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Inner Exception ---
System.Deployment.Application.InvalidDeploymentException (SignatureValidation)
- Manifest XML signature is not valid.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.Manifest.AssemblyManifest.ValidateSignature(Stream s)
at System.Deployment.Application.ManifestReader.FromDocument(String localPath, ManifestType manifestType, Uri

sourceUri)
--- Inner Exception ---
System.Security.Cryptography.CryptographicException
- The system cannot find the file specified.

- Source: System.Deployment
- Stack trace:
at System.Deployment.Internal.CodeSigning.SignedCmiManifest.VerifyPublicKeyToken()
at System.Deployment.Internal.CodeSigning.SignedCmiManifest.Verify(CmiManifestVerifyFlags verifyFlags)
at System.Deployment.Application.Manifest.AssemblyManifest.ValidateSignature(Stream s)

COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.

Hi, computer_mom,

Based on the error codes in your post, I think this issue is related to the priviledges of the computer.

And could you please check if you can access tothis file from the computer

http://www.samplecompany.com/myapp/myapp.application?

And please do not use IE, because IE may save the confidential infomations which the setup. exe cannot get.

Regards

Yu,

Thanks for responding. I have tried to access that url through the run command line with no success. I should have put that in my first post. Do you know what privilege settings would give this error?

Thanks again. Your help is REALLY appreciated.

Hi, computer_mom,

For the privilege problems, I do recommend you to work with your IT support.

You should check the domain account and computer settings to see if there is any violation.

After you solve this problem, the ClickOnce deployment should work.

Hope this helps,

Regards