I developed a SOE project 2 months ago, and it worked well in debugging. Now, I updated this project and wanted to debug it, but not successful. I followed the procedure: Debugging SOEs using the Visual Studio debugger (in http://resources.arcgis.com/en/help/arcobjects-net/conceptualhelp/index.html#/Debugging_server_object_extensions/000100000pn6000000/). The procedure Step 7 states that 'In Visual Studio, click Tools > Attach to Process ...' and Step 8 states that 'Select the ArcSOC.exe process ...'. However, ArcSOC.exe is not in the Available Processes List. I checked Task Manager and saw that 5 ArcSOC are started. How can I add an ArcSOC.exe into the list? Thanks in advance if you can help for this question.