Knowledge Base

File Manager Shows Wrong File Size for Files Larger than 4G

Article ID: 117160

Article Last Modified on 10/31/2006

Microsoft Windows NT Advanced Server 3.1
Microsoft Windows NT Workstation 3.1
Microsoft Windows NT Advanced Server 3.1

This article was previously published under Q117160

SYMPTOMS

File Manager shows the wrong file size for files that are greater than 4 GB in size. The file size shown is the difference between the file's actual size and 4 GB. For example, if the actual file size is 4,819,255,296 bytes, File Manager shows the size as 524,288,000:

     4,819,255,296 (file size)
   - 4,294,967,296 (4 GB)
   ---------------------------
       524,288,000

The DIR command displays file sizes correctly.

CAUSE

File Manager ignores the high DWORD for computing the file size.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.1. We are researching this problem and will post new information here as it becomes available.

Additional query words: prodnt

Keywords: KB117160