A supplementary character is displayed incorrectly as two square boxes on a computer that is running Windows 7 or Windows Server 2008 R2

On a computer that is running Windows 7 or Windows Server 2008 R2, a supplementary character is displayed incorrectly as two square boxes. This problem occurs even if a suitable font is installed.

Note A supplementary character is a Unicode character that has a code position higher than U+FFFF. Specifically, the code position of a supplementary character is in one of the following planes:

• Plane 1 - The Supplementary Multilingual Plane (SMP)
• Plane 2 - The Supplementary Ideographic Plane (SIP)
• Plane 14 - The Supplementary Special-purpose Plane (SSP)
• Plane 15 - Supplementary Private Use Area-A
• Plane 16 - Supplementary Private Use Area-B

Code points in plane 3 through plane 13 are also affected. However, no code points are currently assigned in these planes.

Important�This issue has been resolved in the Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about supplementary characters, visit the following Microsoft Developer Network (MSDN) Web site: For more information about Unicode, visit the following Microsoft Developer Network MSDN Web site: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: