Fix for Citrix Receiver error “Connection established. Negotiating capabilities…”

Posted on Posted in Citrix XenApp, Citrix XenDesktop

When configuring Citrix XenDesktop’s VM Hosted App functionality the connection to the app would hang on “Connection established. Negotiating capabilities…

 

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I tried several solutions:

1) Change the permissions on HKLM\SOFTWARE\Microsoft\MSLicensing as described in this article: http://support.citrix.com/article/CTX123816

2) Delete the registry keys: HKLM\Software\Microsoft\MSLicensing\HardwareID and HKLM\Software\Microsoft\MSLicensing\Store

3) Delete the registry keys Certificate, X509 Certificate and X509 Certificate ID from HKLM\System\CurrentControlSet\Services\TermService\Parameters

But none of them worked for me. For me the solution was to change the value of AppInit_DLLs from c:\progra~2\citrix\system32\mfaphook.dll to mfaphook.dll. This key can be found in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows.

Afterwards the receiver could connect to the VM Hosted App.

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