Application download did not succeed (click once application)

[mabubakarpk]

Dear All,

As we shifted our .net applications on cloud server. We are facing "Applicatio n download did not succeed check your network connection, or contact your system administrator or network service provider" error on some computers but most computer application run without error. This is .net clickonce application.

Framework : .net 2.0
OS : Windows 7 (32bit & 64bit)
Error summary from log please also look attached file
ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://mywebsite/SwithboardCloud .application?TI D=LMS resulted in exception. Following failure messages were detected:
+ Downloading http://mywebsite/SwithboardCloud .application?TI D=LMS did not succeed.
+ The server committed a protocol violation. Section=Respons eHeader Detail=CR must be followed by LF
*************** *************** *************** *****

Any help?

Thanks in advance.

[anotherman88]

This happened when we migrated our applications to new servers. This is a known IIS bug. You will have to uninstall IIS, reinstall it, and then delete pagefile.sys (windows will automatically recreate it, so don't worry).

Also make sure that these IIS extensions are installed and activated correctly.

AppUpdater
ClickOnceIrgab
CGIRestirctions
MSDeployOdnagHt tp
URLRewriter

Hope this will resolve all your problems.

Thanks,

Muter.

[mabubakarpk]

Dear All,
Error has been resolved by adding following lines in C:\Windows\Micr osoft.NET\Frame work\v4.0.30319 \Config\Machine .config

<system.net>
    <settings>
      <httpWebRequest useUnsafeHeaderParsing="true"/>
    </settings>
  </system.net>

Thanks to Mr.MMI