Quick Tip: Lync Web App launches instead of Lync Client

2014/02/10

Scenario: User clicks on a Join Lync Meeting link from Outlook and the default browser launches but leaves the user within the Lync Web App, instead of launching the full Lync client.

Issue: Within the Windows OS there should be a file extension association for .ocsmeet that is tied back to the Lync (Desktop) or Lync (Windows Store) application.

Resolution: You can fix this by either reinstalling the full client or simply importing in the registry keys needed for this file extension association.  There are three places the file extension association is listed:

Current User Software – Download

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file]

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file\shell]

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file\shell\edit]

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file\shell\edit\command]
@=”\”C:\Program Files (x86)\Microsoft Office\Office15\Lync.exe\” \”%1\””

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file\shell\open]

[HKEY_CURRENT_USER\Software\Classes\ocsmeet_auto_file\shell\open\command]
@=”\”C:\Program Files (x86)\Microsoft Office\Office15\Lync.exe\” \”%1\””

Classes Root – Download

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\ocsmeet_auto_file]

[HKEY_CLASSES_ROOT\ocsmeet_auto_file\shell]

[HKEY_CLASSES_ROOT\ocsmeet_auto_file\shell\edit]

[HKEY_CLASSES_ROOT\ocsmeet_auto_file\shell\edit\command]
@=”\”C:\Program Files (x86)\Microsoft Office\Office15\Lync.exe\” \”%1\””

[HKEY_CLASSES_ROOT\ocsmeet_auto_file\shell\open]

[HKEY_CLASSES_ROOT\ocsmeet_auto_file\shell\open\command]
@=”\”C:\Program Files (x86)\Microsoft Office\Office15\Lync.exe\” \”%1\””

Current User – Download

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.ocsmeet]

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.ocsmeet\OpenWithList]
“MRUList”=”a”
“a”=”Lync.exe”

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.ocsmeet\OpenWithProgids]
“ocsmeet_auto_file”=hex:00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.ocsmeet\UserChoice]
“Progid”=”ocsmeet_auto_file”

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