<div class="content"><p>The <b>OSVERSIONINFOEX</b> structure specifies extended
operating system (OS) version information for use with <a href="1393a76f-5851-49a5-bf14-7188ca6763b2" data-linktype="relative-path">Server Handle Key Values (section 2.2.3.10)</a>.</p><table>
 <tbody><tr>
  <th><p><br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>1<br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>2<br/>0</p></th>
  <th><p><br/>1</p></th>
  <th><p><br/>2</p></th>
  <th><p><br/>3</p></th>
  <th><p><br/>4</p></th>
  <th><p><br/>5</p></th>
  <th><p><br/>6</p></th>
  <th><p><br/>7</p></th>
  <th><p><br/>8</p></th>
  <th><p><br/>9</p></th>
  <th><p>3<br/>0</p></th>
  <th><p><br/>1</p></th>
 </tr>
 <tr>
  <td colspan="32">
  <p align="center">OSVersionInfo
  (276 bytes)</p>
  </td>
 </tr>
 <tr>
  <td colspan="32">
  <p align="center">...</p>
  </td>
 </tr>
 <tr>
  <td colspan="32">
  <p align="center">...</p>
  </td>
 </tr>
 <tr>
  <td colspan="32">
  <p align="center">...</p>
  </td>
 </tr>
 <tr>
  <td colspan="16">
  <p align="center">wServicePackMajor</p>
  </td>
  <td colspan="16">
  <p align="center">wServicePackMinor</p>
  </td>
 </tr>
 <tr>
  <td colspan="16">
  <p align="center">wSuiteMask</p>
  </td>
  <td colspan="8">
  <p align="center">wProductType</p>
  </td>
  <td colspan="8">
  <p align="center">wReserved</p>
  </td>
 </tr>
</tbody></table><p><b>OSVersionInfo (276 bytes): </b>An <b>OSVERSIONINFO</b>
structure (section <a href="5942648e-b54f-4e22-a0e2-2d000e084b23" data-linktype="relative-path">2.2.3.10.1)</a>,
which specifies basic OS version information.</p><p><b>wServicePackMajor (2 bytes): </b>The major version
number of the latest Service Pack installed on the system. For example, for
Service Pack 3, the major version number is 3. If no Service Pack has been
installed, the value is zero.</p><p><b>wServicePackMinor (2 bytes): </b>The minor version
number of the latest Service Pack installed on the system. For example, for
Service Pack 3, the minor version number is 0.</p><p><b>wSuiteMask (2 bytes): </b>A value that identifies
the product suites available on the system, consisting of <a href="90be334a-e4ab-46a0-ba72-ec6ed8706606" data-linktype="relative-path">Product Suite Flags (section
2.2.3.10.5)</a>.</p><p><b>wProductType (1 byte): </b>Additional information
about the OS, which MUST be an <a href="682158a5-b093-400b-8dd9-b31f3fdd04d5" data-linktype="relative-path">OS_TYPE enumeration (section
2.2.3.10.3)</a> value.</p><p><b>wReserved (1 byte): </b>A field that SHOULD be
initialized to zero when sent and MUST be ignored on receipt.</p></div>