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I Can Only View Read Only Copies of Documents on SharePoint Sites, but the Office Client Integration Is Enabled

Symptom:

My SharePoint servers have the Office Client Integration feature enabled, but I cannot open any of the documents for editing. I can only open read-only files.

Sometimes I also see the following error message:

An error (1502) occurred during the action Open File. File not found.

Solution:

Verify that the host names in the following Agent for SharePoint configuration parameter do not contain port numbers:

SPClientIntegration

Specifies the hostnames of the SharePoint servers that the Agent for SharePoint protects on which you want to permit Office Client Integration. The default parameter is blank and listed as plain. If there are multiple host entries, use the multivalue option button to add multiple hosts.

Add a port number to the value if the Agent for SharePoint operates on a nondefault port (any port except 80 or 443).

To use this parameter, verify that the SharePoint resources that CA SiteMinder protects also have their Office Client Integration enabled on the SharePoint central administration server.

Because Office Client Integration requires a persistent FedAuth cookie, verify that your SharePoint server is not configured to use session cookies. By default, UseSessionCookies in SharePoint is set to NO.

Default: None

Limits: Multiple values are allowed. Use fully qualified domain names for all values.

Example: agent_for_sharepoint_host_name.example.com (default ports of 80 or 443)

Example: agent_for_sharepoint_host_name.example.com:81 (with a nondefault port number for HTTP)

Example: agent_for_sharepoint_host_name.example.com:4343 (with a nondefault port number for HTTPS)