If you must open attachments, use MOICE to help reduce the security risk. MOICE can help reduce the effect of attacks that come through Word, Excel, or PowerPoint binary format files. Use MOICE when you suspect that you are under direct attack and you do not have a software update that can be used to resolve the vulnerability.
MOICE uses the 2007 Microsoft Office system converters to convert the Office binary format files into the Office Open XML format. This process helps remove the potential threat that may exist if the document is opened in the binary format. Additionally, MOICE converts incoming files in an isolated environment. This helps protect the computer from a potential threat.
Note MOICE is supported only when it is used together with Microsoft Office 2003 or together with the 2007 Office suites. MOICE is not supported for any other version of Microsoft Office.
MOICE currently supports the following document formats:
PrerequisitesTo install MOICE:
- You must have Office 2003 or a 2007 Office suite installed.
- You must have the Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats.
The following file is available for download from the Microsoft Download Center:
Download the FileFormatConverters.exe package now.
- You must have all updates that are recommended for all Office programs. Visit Microsoft Update to install all recommended updates:
Install MOICETo install MOICE, visit Microsoft Update, and then install all recommended updates:
Known issues with MOICE
- After you repair Office 2003 or install an update to Office 2003, the file types associations with MOICE may be removed and must be recreated. The Enable MOICE Fix it Solution below will recreate the file associations for you.
To have us enable or disable MOICE for all supported document formats for you, go to the "Fix it for me" section. To enable or disable MOICE individually for each document format that is supported, you must run the appropriate command listed in the "Let me fix it myself" section.
File Downloaddialog box, and then follow the steps in the Fix it wizard.
|Enable MOICE||Disable MOICE|
Note these wizard may be in English only; however, both automatic fixes work for other language versions of Windows.
Note If you are not on the computer that has the problem, you can save these automatic fixes to a flash drive or to a CD, and then you can run it on the computer that has the problem.
Next, go to the "Did this fix the problem?" section.
- Click Start, click Run, type the command, and the click OK.
- Type the command at a command prompt.
- Execute the commands in a batch file.
- Push the commands by using Group Policy.
Note The Group Policy method must be completed by an administrator.
|File name extension of supported document format||Command to use to enable MOICE to be the registered handler||Command to use to disable MOICE as the registered handler|
|.doc||ASSOC .doc=oice.word.document||ASSOC .doc=Word.Document.8|
|.xls||ASSOC .XLS=oice.excel.sheet||ASSOC .xls=Excel.Sheet.8|
|.xlt||ASSOC .XLT=oice.excel.template||ASSOC .xlt=Excel.Template|
|.xla||ASSOC .XLA=oice.excel.addin||ASSOC .xla=Excel.Addin|
|.ppt||ASSOC .PPT=oice.powerpoint.show||ASSOC .ppt=PowerPoint.Show.8|
|.pot||ASSOC .POT=oice.powerpoint.template||ASSOC .pot=PowerPoint.Template.8|
|.pps||ASSOC .PPS=oice.powerpoint.slideshow||ASSOC .pps=PowerPoint.SlideShow.8|
- Microsoft Office 2003 is upgraded to a later version of Office.
- A hotfix or a public update for Office 2003 is installed.
- The Office 2003 installation is repaired.
Recommended deployment methodIn addition to using MOICE, we recommend that you change the registry settings to prevent file types that you want to pass through MOICE from being opened. For more information about how to change the registry to prevent .ppt files, .pox files, or .pps files from being opened, click the following article number to view the article in the Microsoft Knowledge Base:
Issues that may occur when you use MOICE
- By default, MOICE stops trying to convert a file if the conversion process takes longer than 45 seconds. To customize the time-out value, follow these steps.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:322756 How to back up and restore the registry in Windows
- Click Start, click Run, type Regedit, and then click OK.
- Expand the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\OICE
- Right-click OICE, point to New, and then click DWORD Value.
- Type MaxConvTime, and then press ENTER to name the new value.
- Right-click MaxConvTime, and then click Modify.
- In the Value data box, type the time-out value that you want to use, and then click OK. (The time-out value is represented in milliseconds.)
- Close Registry Editor.
- You cannot use MOICE to open a PowerPoint presentation that is created by using Microsoft PowerPoint 97 or that is created by using an earlier version of PowerPoint.
- After you use MOICE to convert a file, the default save location is the %temp% folder when you try to save the file. Also, the %temp% folder is the default folder when you try to open a file.
- Anyone who has access to the computer can view the files in the %temp% folder.
- When you use MOICE to convert a file, the converted file is saved in the %temp% folder. The converted file is not deleted from the %temp% folder when the file is closed. If a file is opened multiple times, the file is converted multiple times. Additionally, more than one copy of the file is saved in the %temp% folder. If you have made changes to the first copy of the document, the second copy of the document will not contain the changes.
- By default, the applicable program opens after MOICE finishes a file conversion. Then, the converted document is opened. To prevent the applicable program from opening, use the –noapp flag when you enter the MOICE command. The –noapp flag is useful when you want to complete batch conversions.
For more information about batch conversions, visit the following Microsoft Web site:
- Smart tag data is stripped from PowerPoint presentations when you use MOICE to convert a presentation that contains smart tags.
- Macros are stripped from files when you use MOICE to convert files that contain macros.
- When you open a file by using a link inside a file that has been converted by MOICE, the linked file is not converted by MOICE.
- Embedded documents cannot be converted.
- Documents that use rights management cannot be converted.
- Documents that use passwords cannot be converted.
- You cannot use the Edit Document in Microsoft Office Program_Name feature in Microsoft SharePoint when you use MOICE to convert Office files.
- If damage exists, it will be removed from a binary Word 97-2003 Document (*.doc) file during the conversion. Therefore, the contents of the file may change unexpectedly.
For more information about how the file conversion may remove damage from a document, click the following article number to view the article in the Microsoft Knowledge Base:826864 How to troubleshoot damaged Word documents
Article ID: 935865 - Last Review: Sep 5, 2013 - Revision: 1