Mino – The UC Guy

Microsoft Unified Communications Blog

Posts Tagged ‘OCS’

Microsoft Office Communicator 2007 Phone Edition – July edition

Posted by Mino on October 7, 2008

Microsoft  has released a new update for Office Communicator 2007 Phone Edition powered devices – http://support.microsoft.com/?kbid=952693.

The image version is now 1.0.522.101

Posted in Phone Edition | Tagged: , | Leave a Comment »

x64 Bit and OCS

Posted by Mino on October 1, 2008

I faced problem in implementation Client Web Access server on windows 2003 R2 SP2.

The problem prevent client web access…first I thought it is configuration problem but when I checked the event viewer I saw that Error

ErrorID : 2274

Source : W3SVC-WP

This error on CWA server related to cwsauth.dll file that can’t be loaded.

I contact Microsoft for the error and got the following replay:

    Support for 64-bit Operating Systems

    Office Communications Server 2007 supports the following tested 64-bit configurations:

  • The 64-bit edition of SQL Server™ 2005 SP2 on the Back-End Database of an Enterprise pool or the Archiving and CDR database.
  • Running the 32-bit version of the Access Edge Server on 64-bit hardware with WOW (Windows on Windows) 64 mode on the 64-bit edition of Windows Server 2003 SP1 and later.
  • Running the 64-bit kernel driver component of the A/V Edge Server natively on 64-bit hardware plus the A/V Edge Server service component with WOW64 mode on the 64-bit edition of Windows Server 2003 SP1 and later.
  • Running the 32-bit version of Standard Edition server on 64-bit hardware with WOW64 mode on the 64-bit edition of Windows Server 2003 SP1 and later.

Like you see it does not give any answer for my problem.. Actually deploying OCS in X64 bit system is not the best practice since the setup for OCS and the console run under the WOW64 subsystem since they are 32bit programs.

I searched the internet and find more problems related to this problem

Comment : Deploy your OCS server in win X86 mode..It is better.

Aside:Actually, I think your situation has a better solution that solve X64 problem. I think it is known issue with application running in IIS in WOW64 mode.

If you check your Event Log entries, you will likely find several of the following entry, followed by another entry declaring that the Application Pool is being disabled.

Event Type: Error
Event Source: W3SVC-WP
Event Category: None
Event ID: 2274 

Could not load all ISAPI filters for site/service.

I think the reason why you are getting this event is straight forward:

  • On 64bit Windows, the “bitness” (i.e. 32bit or 64bit) of a process must match the bitness of the DLLs loaded by that process. In other words, a 64bit EXE can only load 64bit DLLs, and 32bit EXE can only load 32bit DLLs ( the problem of the cwsauth.dll file ).
  • By default, IIS6 on 64bit Windows runs with 64bit W3WP.EXE worker processes
  • .NET Framework 2 has ASP.Net implemented through 32bit ISAPI DLLs.

What is happening when OCS wizard install .NET Framework 2 on IIS6 on 64bit Windows is that while IIS6 runs W3WP.EXE as 64bit, you are configuring it to load some 32bit ISAPI DLLs. This does not work and leads to the event log entry. Since the ISAPI DLLs are loaded for every request, this failure immediately happens again and again, thus triggering the “Rapid Fail Protection” health monitoring check of IIS6. This leads to this Application Pool being taken offline .

One way to fix this issue is to:

  1. Change IIS6 run W3WP.EXE as 32bit
  2. *** IMPORTANT *** Then restart the CWA Application Pool that returns the error since it is stopped. You cannot fix any error without restarting the Application Pool.

Changing IIS6 to run W3WP.EXE as 32bit allows the 32bit ISAPI DLLs installed by .NET Framework 2 for ASP.NET to load and run inside of it. This is done by running the following commandline:

CSCRIPT %SYSTEMDRIVE%\Inetpub\AdminScripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1

This command switches IIS6 into running WOW64 (i.e. 32bit compatibility) mode on 64bit Windows on-the-fly so that IIS6 can immediately run 32bit ISAPI DLLs… unless that Application Pool is ALREADY returning 503 errors, in which case you MUST restart the Application Pool to have the bitness switch take effect. It makes sense because a 503 error means the Application Pool is offline and not running, so you must restart it to have setting changes take effect.

You can do this by either:

  • Restarting the Application Pool in question
  • Restarting IIS
  • Reboot the server
    SHUTDOWN -r -t 0

Now, I cannot guarantee that this works for you because you may have other applications that must run as 64bit, in which case you have a conflicting need to simultaneously run 32bit and 64bit code in IIS6, which is not allowed.

See KB 895976 for more details.

Posted in Common Errors | Tagged: , , , | Leave a Comment »

What is UC ?

Posted by Mino on October 1, 2008


The computer starts to work like a phone

To call someone, you just click on his or her name. The computer places the call. It doesn’t matter whether you see their name in e-mail, inside Microsoft Office Word, or on a Microsoft Windows SharePoint Services site: their contact information and the ability to reach them is always present.

Presence is one of the key benefits of unified communications because it unites all the contact information stored in Active Directory with all the ways people communicate: phone, conferencing, instant messaging, e-mail, calendaring. People’s availability, their contact information, and the ability to communicate with them are integrated and always just a click away.


The phone starts to work like a computer

Try this with a standard office phone: call someone, then add someone else to the call. Okay, now add ten people. Now, turn it into a live video call. Could you do it? Is it even possible?

With Microsoft unified communications technologies, you click to call. Click again and you can launch a conference call. Need video? It’s a click away. It’s that easy.


Voice mail becomes e-mail

Voice mail arrives in your Microsoft Office Outlook inbox, right beside your e-mail. That might not sound impressive, but have you ever tried to forward voice mail using the touchtone keypad on a telephone? When voice mail becomes e-mail, you can forward it just like any e-mail: to one person, a work team, or an entire department.


On the back end, things are even better

Change like this usually means a lot of new hardware, extra work for IT, and a vastly more complex infrastructure. But not with Microsoft unified communications technologies.


VoIP as you are

You don’t need a forklift to install Microsoft unified communications technologies because Microsoft uses software instead of hardware. Microsoft Office Communications Server 2007—the server that delivers presence, instant messaging, and audio- and videoconferencing—integrates smoothly with your existing telecommunications infrastructure, including your current PBX.


Unified communications streamline infrastructure

Microsoft unified communications technologies use Active Directory to unify the entire corporate directory—names, PBX extensions, e-mail addresses, and logons. This simplifies IT administration.


Use speech technology for self-service via the telephone

Voice portals offer callers an easy way to get to information they need using naturally spoken language from any phone, 24 hours a day, 7 days a week.

The powerful speech-enabled Interactive Voice Response (IVR), Speech Server, which is a part of Microsoft Office Communications Server 2007, can help businesses deliver significant value through speech-enabled self-service applications via the telephone at a very attractive price.

Such applications can be both inbound, like the above mentioned voice portals, as well as outbound applications, like quality surveys or notifications via the telephone.


Phone calls become digital assets

Just like e-mail. Which means they can be logged, reviewed, published, and archived. Having a complete record and recording of every phone call is increasingly critical as businesses struggle to comply with stricter federal and international regulations.


Flexible and future-ready

By using a software solution to deliver unified communications, your business can stay flexible and embrace innovations as they come. The Microsoft unified communications platform of powerful APIs enables developers to extend that software solution with security-enhanced and productivity-enhancing applications that span all modes of communications. When emerging technologies and changing business needs require your communications infrastructure to adapt, all you have to do is extend or upgrade your software, not your hardware


Posted in 1-What is UC | Tagged: , , , , | Leave a Comment »