You may experience latency problems when you access a document from a Universal Naming Convention (UNC) network share in Word 2002 (322345)


The information in this article applies to:

  • Microsoft Word 2002
This article was previously published under Q322345

SYMPTOMS

You may experience slow behavior in Microsoft Word 2002 when you enter information in a large table if the following conditions are true:
  • You open a Word document from a Universal Naming Convention (UNC) network share.
  • You connect through a slow network connection such as a virtual private network (VPN) or a dial-up connection.

CAUSE

When Word reads a file from a UNC location, it reads the file into its page buffer memory. The default total size of the page buffer memory is 64 kilobytes (KB). When you perform operations on large tables (such as auto-fit, which occurs when you enter informaion in a table cell), Word examines the text and the properties of the table from the top to the bottom. If the information that Word needs is not located in the buffer, Word downloads the whole file across the network again. This occurs so that Word can read the appropriate information into the buffer.

RESOLUTION

To correct this problem, increase the Word page buffer size. The page buffer size is controlled by the following registry key:

KEY: HKEY_CURRENT _USER\Software\Microsoft\Office\10.0\Word\Options
DWORD VALUE: CACHESIZE

The value is the page buffer storage KB amount, and is rounded to multiples of 64. Therefore, the default value of this key is 64. The largest value that is supported is 1,024. However, a value of 512 typically resolves the problem that is discussed in this article. To create this registry key and to set the value that you want, follow these steps:
  1. Click Start, and then click Run.
  2. Type regedit.
  3. Click Ok.
  4. Expand the HKEY_CURRENT_USER key.
  5. Expand the Software key.
  6. Expand the Microsoft key.
  7. Expand the Office key.
  8. Expand the 10.0 key.
  9. Expand the Word key.
  10. Expand the Options key, and then select Options.
  11. On the Edit menu, point to New, and then click DWORD value.
  12. Type CACHESIZE.
  13. In the right pane, double-click the CACHESIZE value.
  14. Enter the value that you want (in multiples of 64).

    NOTE: The maximum acceptable value is 1,024. The suggested value is 512.
  15. Click Ok, and then close Registry Editor.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
Modification Type:MinorLast Reviewed:9/22/2004
Keywords:kbtshoot kbPerformance kbOfficeXPPreSP2fix kbOfficeXPsp2fix kbprb KB322345
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