I created a custom login page using information from David's site (Thanks David). All works fine except in the following situation:

My company has multiple domains - An employee logs into windows with Domain123\username. There user account on SharePoint is DomainXYZ\username. When the click on "Employee Login" on the custom page they receive "Error: Access Denied" You are login in as Domain123\username. When selecting Log in as a Different User it takes me back to the custom page and if I click on "Employee Login" I receive a blank page.

Instead of going to the Custom Page I'd like a Window's Authentication Log in to open so the person can login with as a different user. How can I do this? I'm very new to this and have no idea what coding is needed.

Thanks in advance

2 Answers 2


To login the user using windows authentication from your custom login page, you can simply redirect them to SharePoint's built in windows authentication page:



I think creating the custom login page is in relation to having FBA users from the database. However the you're taking about Windows authentication?

I may be wrong (not been doing this long myself) but why would you have a custom login page for windows authentication?

  • in regard to why have a custom form - we are using Claims Base and have both Windows and FB users. The out-of-box login can be confusing (do I want Widows or Forms Authentication?), disclaimers need to be on the login page, password resets, and registration.
    – Stacey
    Jun 1, 2012 at 15:42
  • Ah right, actually I wouldn't know how to do a custom dual login screen. I have the same setup, so I used the windows account as an initial account to set some things up, but once I had a FBA account, I added it to the site collection administrators and now only use FBA, however, it would be interesting to know how to initiate a windows login prompt!
    – SatBav
    Jun 1, 2012 at 16:12

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