Please visit the following Microsoft site for the solution:

http://support.microsoft.com/default.aspx?...b;EN-US;q243579

SYMPTOMS
When you attempt to insert a Microsoft Word Document object into a program, you receive one of the following error messages:
Microsoft application can't start the application required to open this object. An error occurred and this feature is no longer functioning properly. Would you like to repair this feature now?
If you click No to the error message, you receive the following error message:
Cannot start the source application for this object.
-or-
Failed to create object. Make sure the application is entered in the system registry.
When you attempt to edit text in Microsoft Publisher by using the Edit Story in Microsoft Word command, you receive the following error message:
A Word Story Editing error occurred. Microsoft Word may be busy, or there may not be enough memory. Wait a moment for Microsoft Word to finish. If this doesn't correct the problem, try making more memory available by saving your work and closing other programs; then try again.
When you try to use Automation to control Word with the CreateObject function, you receive the following error message when you try to run the code:
Run-time error '2147417846 (8001010a) Automation error.
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
Q246018 BUG: Automation Error 8001010A when Automating Word 2000
When you try to perform a mail merge from Microsoft Outlook, you receive the following error message:
The program for the attachment may not have been installed properly or may have been moved or deleted. Reinstall the program in which the attachment was created.
When you select Send to Microsoft Word from Microsoft Office XP Document Imaging, you receive either of the following error messages
The server threw an exception.
-or-
a DDE (Dynamic Data Exchange) Server error message, such as the following:
DDE Server: Winword.exe - application error

The instruction at "0x77f531f5" referenced memory "0x000c0fc5" the memory could not be "read"
When you attempt to save or print a file, the Save , Save As , or Print dialog box may appear behind your Office program.
When you start Microsoft Word, you receive the following error message:
visual c++ run time library.
Run time error:
winword.exe r6025 pure virutal function call
When you try to open a presentation in Microsoft PowerPoint, you receive the following error message:
PowerPoint found an error that it can't correct. You should save presentations, quit, and then restart PowerPoint.
In Microsoft Word, when you click the Page Up button or Page Down button on the vertical scroll bar, Word does not proceed to the previous page or next page.