If you receive an error message when you try to open a file type that was blocked by your registry policy settings in Word 2007:
You should disable this restriction in Word 2007, change the value of the FileOpenBlock subkey. To do this, follow these steps:
1. Exit Word.
2. Click Start, click Run, type regedit in the Open box, and then click OK.
3. Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Word\Security\FileOpenBlock
If the FileOpenBlock subkey does not exist, you must create it. To do this, follow these steps: a. Select the Security subkey.
b. On the Edit menu, point to New, and then click Key.
c. Type FileOpenBlock, and then press ENTER.
4. After you select the subkey that is specified in step 3, locate the DWORD value.
Note If this value does not exist, you must create it. To do this, follow these steps: a. On the Edit menu, point to New, and then click DWORD Value.
b. Type the DWORD value for which you want to disable the restriction, and then press ENTER. For example, type FilesBeforeVersion.
You may check for the different DWORD values in the "More Information" section of this article based on the version of Word that you are running.
For example, if the opening of files that were saved in earlier file formats is restricted, locate the "FilesBeforeVersion" DWORD value in the registry for the FileOpenBlock subkey. When you change the value of "FilesBeforeVersion" from 1 to 0, you can open files that were saved in earlier file formats.
5. Right-click the DWORD value that you want, and then click Modify.
6. In the Value data box, type 0, and then click OK.
7. On the File menu, click Exit to exit Registry Editor.
