4: Install the .NET 2.0 redistributable (Should only be necessary on Windows XP and earlier)
 *::https://www.microsoft.com/downloads/en/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en
 
-5: Install the Windows Platform SDK. (may depend on .NET 2.0). Any version of the Platform SDK should be fine.  SDK 6.1 and 7.0 are both known to work.
+5: [Optional] Install the Windows Platform SDK. (may depend on .NET 2.0). Any version of the Platform SDK should be fine.  SDK 6.1 and 7.0 are both known to work. This is not required if you have Visual Studio 2008 professional.
 *::http://msdn.microsoft.com/en-us/windows/bb980924
 
 1: [Optional but Recommended] Install 7-zip. Add it to your PATH.  7-zip is not needed to build, but it is needed to make the HTCondor .ZIP file.  You will not be able to build the PACKAGE target witout 7-zip.