Attempting to use SEFAUtil.exe to configure call forwarding on a Lync Server 2013 server fails with: SEFAUtil.exe has stopped working

Problem

You attempt to use the SEFAUtil.exe executable in the Lync Server Resource Kit Tools to configure call forwarding on a Lync Server 2013 server but it immediately fails with:

SEFAUtil.exe has stopped working

Description:

Stopped working

Problem signature:

Problem Event Name: CLR20r3

Problem Signature 01: sefautil.exe

Problem Signature 02: 4.0.0.0

Problem Signature 03: 4cc149b9

Problem Signature 04: SEFAUtil

Problem Signature 05: 4.0.0.0

Problem Signature 06: 4cc149b9

Problem Signature 07: 1

Problem Signature 08: 7

Problem Signature 09: System.IO.FileNotFoundException

OS Version: 6.3.9600.2.0.0.272.7

Locale ID: 2057

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Closing the pop-up window then displays the following output:

PS C:\Program Files\Microsoft Lync Server 2010\ResKit> .\SEFAUtil.exe /server:contuklse03.contoso.com tluk@contoso.com /enablefwdimmediate /setfwddestination:marmstrong@contoso.com

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or ass

embly 'Microsoft.Rtc.Collaboration, Version=4.0.0.0, Culture=neutral, PublicKeyT

oken=31bf3856ad364e35' or one of its dependencies. The system cannot find the fi

le specified.

File name: 'Microsoft.Rtc.Collaboration, Version=4.0.0.0, Culture=neutral, Publi

cKeyToken=31bf3856ad364e35'

at SEFAUtil.SefaTool.Execute()

at SEFAUtil.Program.Main(String[] args)

WRN: Assembly binding logging is turned OFF.

To enable assembly bind failure logging, set the registry value [HKLM\Software\M

icrosoft\Fusion!EnableLog] (DWORD) to 1.

Note: There is some performance penalty associated with assembly bind failure lo

gging.

To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fus

ion!EnableLog].

PS C:\Program Files\Microsoft Lync Server 2010\ResKit>

You document the Trusted Application and Trusted Application Pool, remove and recreate it but the error still persists.

Solution

One of the things I noticed for this environment was that the ResKit was installed in the Microsoft Lync Server 2010\ResKit directory so I initially reran the ResKit install (https://www.microsoft.com/en-us/download/details.aspx?id=36821) to see if it would upgrade it but the window I was presented with was to either repair or remove. I ended up choosing repair but this did not correct the issue. After not having any luck with other troubleshooting steps, I went ahead and uninstalled the 2010 tools and reinstalled into the Microsoft Lync Server 2013\ResKit and this corrected the issue. It appears the ResKit installer does not identify whether the existing install was for 2010 or 2013.

The following is the successful output:

PS C:\Program Files\Microsoft Lync Server 2010\ResKit> .\SEFAUtil.exe /server:contuklse03.contoso.com tluk@contoso.com /enablefwdimmediate /setfwddestination:marmstrong@contoso.com

User Aor: sip:tluk@contoso.com

Display Name: Terence Luk

UM Enabled: True

Simulring enabled: False

Forward immediate to: sip:marmstrong@contoso.com

PS C:\Program Files\Microsoft Lync Server 2013\ResKit>