We have a client that recently was experiencing errors that would lock out anyone from accessing the SBS Server. They recently installed CRM 3.0 SBE and now were getting an error that would pop up and mention the process w3wp.exe.
Here's the recommendation initially from Microsoft:
Ensure the path c:\Porgam Files\Common files\Microsoft Shared\Web Server
Extensions\60 is added in the Excluded path of the Antivirus Settings.
Also:Enable IIS Worker Process from the Data Execution Prevention settings.
Go to My Computer -- > Advanced --> Performance -- >Settings -- > Data Execution
Prevention --> 2nd radio button ( Turn on DEP for all programs and services
except those I select) -- > Add W3WP.EXE process in exception list (no need
for reboot). (the w3wp.exe process is in c:\systemroot\system32\inetpub
We followed the above and we'll let you know how we come out on it.