What kinds of utilities are available that can do this?
Please provide me with a complete list.
There are several methods to convert OST file to PST file. This is from https://social.technet.microsoft.com/Forums/en-US/c5f8de55-97f6-48af-b6f0-c010be90b5ba/how-to-conver...
Microsoft does not provide an official tool to do the conversion. However, if you can access the contents of the OST file in your Outlook, then you can perform the conversion manually, as follows:
1. Start Outlook. Make sure you can access all the contents in the OST file to be converted.
2. Create a new PST file.
3. Go to the OST file, select and copy all the contents to be converted with your mouse.
4. Go back to the new PST file, then paste all the contents into the PST file
You may also perform the conversion by export the contents of the OST file to a PST file by following the instructions at:
1a). Follow given some instruction: IN Outlook 2007
Tools -> Account Settings -> Email account -> More settings -> Advanced tab -> select Use Cached Exchange
Mode --> Click Offline Folder File Settings -> Browse to .OST file then restart Outlook. open your OST file
After restart outlook,
File -> Import and Export -> Export to a file -> .pst file
b). Create a new outlook .pst file and drag the folder to .pst file that you want to move
For more: http://social.technet.microsoft.com/Forums/en-US/5d2a8c77-5599-4fee-9539-4f04c971e7b6/ost-to-pst-converter-problem?forum=officeitpro