Error 0x80075227 and 0x8007520C on a Web Application Proxy 2012R2

Today while implementing a KEMP load balancing solution for ADFS v3 and WAP together with a colleague, I ran into errors on my WAP servers. Both seemed to be connected fine, the IdpInitiatedSignon.aspx page worked….but when I tried to run Get-WebApplicationProxyADFSRelyingParty in Powershell, I got 0x80075227 to chew on.

At first just ADFS+WAP, load balanced, worked, this error surfaced when we added a Non Claims Aware trust to a Sharepoint 2013 Kerberos enabled server so we could publish it using Windows Authentication (which we needed for various BI / Excel components that require Kerberos). The Sharepoint servers were also load balanced, we expect the KEMP has issues with SNI.

Connecting the WAP server directly to ADFS, without the KEMP load balancer in between solved this issue for now, we’re still looking into the configuration of the KEMP with their technicians to find a way to load balance this effectively without compromising on security.

Update: our engineer who worked with KEMP reported that an extra VIP was required because of SNI.

Windows Intune Client on Windows 7 errors 0x80cf401b or 0x80cf0438

If you hit error 0x80cf401b or 0x80cf0438 when attempting to install the Windows Intune client, disable your proxy or use a network that is not proxied.

In addition, after the Intune Client had been installed, I ran into several other errors that you might also run into. Always check for log files in c:\program files\microsoft\onlinemanagement\logs

The solution to below errors was Continue reading Windows Intune Client on Windows 7 errors 0x80cf401b or 0x80cf0438

O365Uploader V0.4

Due to popular request,  I’ve added an analyze function to the O365Uploader. After choosing your folder to be uploaded, a popup will ask you if you wish to see an analysis of potential issues and suggested fixes for your content. Everthing will both be written to the Powershell console in the background and a detailed log file which can be used in MS Excel.

You can download the new version here.

Other changes:

  • Added check for period in folder/file name
  • Added check for various illegal suffixes in filenames
  • Added verification prompt before upload to log all issues to a file beforehand so it can be fixed in advance
  • Added warning for 5000+ items
  • Added warning for hidden files (start with an _ )

Changing or virtualizing the Hosts file with AppV 5

Sometimes, applications require specific host file entries. Often you’d probably be able to get around using DNS to resolve the entries the application really needs. But when you can’t, and you want to virtualise your application using AppV 5, it’ll use the hosts file of the OS instead of the hosts file in the virtualized file system.

To get around this, we can let the AppV client fire off a script to modify the actual OS hosts file upon registration of the AppV application. This is done by modifying the DeploymentConfig.xml file and adding a script to your package, detailed descriptions of how this works can be found here. Basically, you add this between the <Machinescripts> tags in the DeploymentConfig.xml file, example:


The VB code in hostfile_edit.vbs that does the actual work is:

Const ForReading = 1, ForWriting = 2, ForAppending = 8
 Set fso = CreateObject("Scripting.FileSystemObject")
 Set WshShell = CreateObject("WScript.Shell")
 WinDir = WshShell.ExpandEnvironmentStrings("%WinDir%")
 HostsFile = WinDir & "\System32\Drivers\etc\Hosts"
 Set filetxtR = fso.OpenTextFile(HostsFile, ForReading, True)
If (checkHostfile(filetxtR, DNSEntry1) = True) Then
 Set filetxtA = fso.OpenTextFile(HostsFile, ForAppending, True)
 filetxtA.WriteLine (DNSEntry1)
 End If
Public Function checkHostfile(filetxt, lineToCheckFor)
 checkHostfile = False
 Do Until filetxt.AtEndOfStream
 s = filetxt.readline
 If (s = lineToCheckFor) Then
 checkHostfile = True
 Exit Function
 End If
 End Function

Microsoft 365, Azure, Automation & Code