connect to outlook is missing on sharepoint

I am using MOSS 2007 with sp2 and outlook 2007. I want to connect outlook express through Lists>option>connect to outlook but I am missing link connect to outlook option. The lists are tasks, survey, calendar. I can see the link connect to outlook on other option like documents. As far as I can see this is not an issue with the MOSS server but a client problem.

Must require:
1) Microsoft Office 2003/2007 should be installed on the machine
2) SharePoint Services Support feature should be installed in the clients Office
3) Web application should be windows based and not a form based authentication because Client integration is disabled by default when you use FBA

Additional Data/Reference:
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The survey list doesn’t have “Connect to Outlook” option by design. The option is present only in the following:

 1. Calendar: Schedule projects, appointments, and milestones. View the SharePoint Server 2007 calendar next to your Outlook 2007 calendar, or overlay both calendars to see all items at once.

2. Task List Assign: project duties and track them to conclusion. Team members can see all tasks in the Outlook 2007 Tasks window, or can view tasks assigned only to them in the To-Do Bar. 

3. Document Library: Use document libraries to preview, search, and open team documents. Team members can edit documents online or offline.

4. Discussion Board: Discuss topics with team members. E-mail discussions require participants to find and sort messages, but Discussion Boards isolate messages for easy tracking.
 5. Contact List: Stay in touch with team members and important people outside the team. As one member adds contacts or edits them, the entire team gets the new information.

Troubleshooting Done:
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1. Office Repair: If are any office issues then we can run the office diagnostics and check any corruptions are there or not.

2. Manually unregister and register the owssupp.dll with regsvr32 (FYI: Path:-Office 12 folder)

3. We need to track that this issue is machine specific/user specific.

4. Which kind of browser is used by that machine where the problem resides? Troubleshooting purpose: we can check the behavior in chrome/Firefox.

5. If its a problem with all the users then Central Administration is the only option by which we can fixed this issue.

6. SharePoint STSSYNCHANDLER:Connect to Outlook to synchronize lists

Reff: http://msdn2.microsoft.com/en-us/library/ms456225.aspx / http://blogs.technet.com/b/josebda/archive/2007/03/26/searching-the-visible-moss-2007-code-for-activex-references.aspx

Multiple Resolutions:
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1. Try to enable the add-on called “SharePoint Stssync Handler” in Internet Explorer go to Tools, Manage Add-Ons and look for add-ons called “SharePoint Stssync Handler” if disabled,Enable it. If enabled, disable it restart IE and re-enable it.

2. If you are using multiple office versions on the same machine then as per Microsoft recommendations-Please keep the core version only.

what is mean by core version? If you are using Office 2003 and some components of Office 2007 then office 2003 is the core version.

Remove the additional components and reair the office installation completely and restart the computer.

3. SharePoint Services Support feature should be installed on the machine. Control Panel-->Microsoft Office-->Change-->add the components

4. Enable Client Integration Option: Central Administration -> Application Management -> Authentication Providers (Under Application and Security)

In the Authentication Provider’s section, go to the particular web application and select the Membership Provider's Zone, and check that you have enabled the Enable Client Integration Option. Once this option is enabled, you will see those options for integrating with client application options on SharePoint lists.

My Resolution:
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-My customer was using a custom list and he has converted a custom list into calendar view. "connect to Outlook" will never be present in the custom list.

-Created a out-of-box calendar view and transferred the items by using content & structure to the newely created calendar list.

If you have any queries/questions regarding the above mentioned information then please let me know..

I would be more than HAPPY to HELP U as well as RESOLVES UR ISSUES...