1. Open the IIS MMC on the web server computer. You can access it directly by going to the start menu and select RUN. In the text box, type in "%SystemRoot%\system32\inetsrv\iis.msc" with out the quotes and hit enter.
2. Expand the Web Sites node, and find the site entitled "Microsoft SharePoint Administration". It should be the second site when ordered by Identifier.
3. Right click on the site, and select Properties.
4.
On the first tab (Web Site) make sure that the IP address is correctly bound (I would recomend setting at (All unassigned). Set the TCP Port to 6892 and the timeout to 240.
5.
Browse to the ISAPI filters tab, and clear out anything that is there so that the box is empty.
6.
Go to the next tab, Home Directory. Make sure that the local path is set to "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\50\isapi\_vti_adm" with out the quotes. If your Operating system is installed onto a different drive, or you use a different drive/directory for the program files, please change the above path to reflect your individual setup. What is pasted above is the default and wont need to be changed by most people.
7.
On the next tab - Documents - Remove everything except for Default.aspx from the list. Then click on "Add" button to the right, and type in fpadmdll.dll in all lower case, and hit ok. Click on the newly added name in your list, and click on the "Move Up" button - you want this newly added listing to be on the top of the list.
8.
Hit OK to save and close the window. Depending on yoru computer, this could take a second, or it could take several to finish saving. Once the window has been closed, go back to the Start menu, and select RUN again. In the Textbox type "iisreset /restart" with out the quotes. A window will open stating that it is trying to stop (and then start) the services.Once this completes you are done and the process should now work as you expect.