SharePoint - SandBox solutions Vs Farm Solutions

In this blog post, documenting the quick notes that I made during my learnings on SharePoint SandBox solutions Vs Farm Solutions.

Farm Solution

• Farm admin needs to deploy
• Deploy WSP
• Add WSP to Solution Store using AddSolution
• Deploy Solution using solution store management page in Central Admin or through Powershell

Sandbox Solution

• Site Collection Owner can deploy
• Runs inside a secured monitored process
• Have Limited Resource Access
• When deployed will not show up in
• GAC or in FileSystem
• Deploy Sandbox solution to Site Collection
• Site Settings --> Galleries - Solutions --> Upload
• 14 hive --> UserCode
• SPUCWorkerProcess.exe is where the Sandbox solution runs not inside the W3WP.exe
• Web.config --> Trust Level defined as wss_sandbox
• Central Admin
• System Settings
• Services --> Start --> MS SharePoint Foundation Sandboxed Code service
• Configure Quotas and Locks
• CA --> Application Management
• Load Balancing
• CA --> System Settings --> Manager User Solutions
• Not allowed (Restrictions)
• Objects over SPSite
• SPSecurity (No Impersonation)
• No FileSystem access
• WebPart Communications not allowed (As WP comm uses Reflections internally)
• Solution Validator
• SPSolutionValidator
• Using Microsoft.SharePoint.Administration;
• Using Microsoft.SharePoint.UserCode;
• Sandbox Solutions Full Trust Proxies
• Instead use WCF service