Error 1811 Occurs Running JETPACK.EXE

• Microsoft Windows NT Server versions 3.5 and 3.51
• Microsoft Windows NT Server version 4.0

SYMPTOMS

When you run the JETPACK utility to compact a Windows Internet Name Service (WINS) or DHCP database, the following error message appears:

   Jetpack failed with error = -1811

CAUSE

Error 1811 is a JETPACK error which means "File not Found."

This problem occurs if you run JETPACK.EXE from a directory other than the WINS or DHCP directory. This error will occur even if the correct directory path for the WINS/DHCP database file is given. This is because JETPACK.EXE expects the SYSTEM.MDB file to be present in the current directory.

WORKAROUND

To work around this problem, do one of the following:

• Run JETPACK.EXE from the WINS or DHCP directory.

  -or-

• Copy the WINS/DHCP database file, SYSTEM.MDB to the current directory and run JETPACK giving the full path of the WINS/DHCP database file.

STATUS

Microsoft has confirmed this to be a problem in Windows NT Server versions 3.5, 3.51, and 4.0. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.