If you are tasked with upgrading to Trend Micro's Worry-Free Business Security (WFBS) Advanced and you are currently running Client Server Messaging Security (CSMS). Then this guide should help you along the way.

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First off make sure you have Trend Client Server Messaging Security version 3.6. This is the only supported upgrade options aside from Worry-Free Business Security 5.0 and 5.1, but that is not covered here. We are going to focus on CSMS &gt; WFBS here.

First off, be sure to check out Trend's <a href="http://esupport.trendmicro.com/Pages/Important-files-to-back-up-before-upgrading-to-Worry-Free-Business-Sec.aspx">KB Article</a> and backup all the important files before you do anything.

Once you have backed up all the important files, let's go to Trend's download <a href="http://www.trendmicro.com/download/product.asp?productid=39">site</a> and download <strong>WFBS 6.0</strong> and <strong>Service Pack 1</strong>.

Once the files have downloaded, let's log into to the CSMS dashboard and change the update schedule to daily - we don't updates running while we're in the middle of upgrading.

Next go ahead and run the <strong>WFBS6.0_Advanced_EN_B1331.exe</strong> installer. As this is supported from Trend, we will install WFBS right on top of CSMS. The wizard will kick off, and this is pretty straightforward. Keep in mind that if this CSMS is installed on the same server as Exchange that we'll need to upgrade the Messaging Security Agent as well.

You will more than likely need to reboot. If asked, then proceed accordingly. 

Next let's be sure to install the Service Pack. Run the <strong>WFBS6.0_Advanced_EN_ServicePack1_B2122.exe</strong> installer.

You will more than likely need to reboot. If asked, then proceed accordingly. 

Your clients will need to upgrade to 6.0 client as well. Once they log in they should receive notification pop-up, or the install will occur automatically depending on the settings you have in place on the server. To be on the safe side, check the Dashboard&gt;Security Settings&gt;Desktops and ensure your clients are indeed at security agent version "6".

It is always a good idea to spot check some desktops to ensure everything running smoothly and the information being reported is valid.

Trend Micro has done a wonderful job documenting walk-through videos. Be sure to check them out <a href="http://esupport.trendmicro.com/smb/pages/Worry-FreeBusinessSecurityStandardAdvanced60.aspx">here</a>.