U.S. Department of Commerce

VPLX: Variance Estimation for Complex Samples

Windows 95/98/NT, Version 1998.09

Version 1998.09 requires at least 16 Meg of RAM and a 486 with a math coprocessor (486 DX ...) or preferably a Pentium or equivalent, running Windows 95, 98 or NT. Because it is a true 32-bit application, the version will not run under Windows 3.1.

The vplx.exe executable was produced by the Microsoft PowerStation 4.0. Users are not required to have this product in order to run the program. VPLX should be installed according to the directions in intra2.pdf. The documentation uses Adobe's Acrobat format, which was described in the section on VPLX documentation.

  • vplx.exe - [Executable File 838K]

  • vplerror.txt - an ASCII file with text for error messages (173K) See hint on downloading below.

  • intra2.pdf - a .pdf file with installation instructions [PDF 13K]

Hint on downloading:  Clicking on the vplerror.txt or intra2.pdf with the left mouse button may show you the contents of the file instead of offering to download it.

To download from Netscape Communicator:

  • When vplerror.txt file is displayed, select the File menu above and choose "Save File As", or

  • When intra2.pdf is displayed, click the save to disk icon on the Acrobat toolbar (version 4.0), or use the File menu of Netscape Communicator and choose "Save File As", or

  • Instead of clicking the file name with the left mouse button, click on the file name on this page with the right mouse button, and choose "Save Link As"

To download from Internet Explorer:

  • When vplerror.txt is displayed, select the File menu above and choose "Save As", or

  • When intra2.pdf is displayed, click the save to disk icon on the Acrobat toolbar (version 4.0), or use the File menu of Internet Explorer and choose "Save As", or

  • Instead of clicking the file name with the left mouse button, click on the file name on this page with the right mouse button, and choose "Save Target As"

[PDF] or PDF denotes a file in Adobe’s Portable Document Format. To view the file, you will need the Adobe® Reader® Off Site available free from Adobe.

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Source: U.S. Census Bureau  |  Systems Support Division  |  Page Last Modified: May 06, 2011