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Symptoms

When you create and then delete a Network Driver Interface Specification (NDIS) miniport driver instance in Windows Embedded Compact 7, this may trigger a memory leak in the NK.exe process.

Note NK.exe is the core process of the Windows Embedded Compact 7 system.

For example, this problem may occur when you repeatedly call one of the following pairs in order to dynamically create and then delete a new NDIS device instance:

  • The NdisRegisterAdapter and NdisDeregisterAdapter functions

  • The IOCTL_NDIS_REGISTER_ADAPTER and IOCTL_NDIS_DEREGISTER_ADAPTER NDIS DeviceIoControl requests


Resolution

Software update information

A supported software update that is named "Windows Embedded Compact 7 Monthly Update March 2012" is now available from Microsoft. In the "File information" section, the package file name contains the processor type.

Note This Windows Embedded Compact 7 Monthly Update is available for download from the Microsoft Download Center:

Windows Embedded Compact 7 Updates

Prerequisites

This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

  • On the Build menu, click Clean Solution, and then click Build Solution.

  • On the Build menu, click Rebuild Solution.

You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Files that are included in this update package

File name

File size

Date

Time

Path

Route.exe

53,248

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Checked

Tcpipreg.dll

77,824

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Checked

Route.exe

65,536

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Debug

Tcpipreg.dll

94,208

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Debug

Route.exe

49,152

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Retail

Tcpipreg.dll

49,152

30-Mar-2012

18:35

Public\Common\Oak\Target\Armv5\Retail

Route.exe

53,248

30-Mar-2012

18:40

Public\Common\Oak\Target\Armv6\Checked

Tcpipreg.dll

77,824

30-Mar-2012

18:40

Public\Common\Oak\Target\Armv6\Checked

Route.exe

65,536

30-Mar-2012

18:40

Public\Common\Oak\Target\Armv6\Debug

Tcpipreg.dll

94,208

30-Mar-2012

18:40

Public\Common\Oak\Target\Armv6\Debug

Route.exe

49,152

30-Mar-2012

18:40

Public\Common\Oak\Target\Armv6\Retail

Tcpipreg.dll

49,152

30-Mar-2012

19:44

Public\Common\Oak\Target\Armv6\Retail

Route.exe

53,248

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Checked

Tcpipreg.dll

77,824

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Checked

Route.exe

65,536

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Debug

Tcpipreg.dll

94,208

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Debug

Route.exe

49,152

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Retail

Tcpipreg.dll

49,152

30-Mar-2012

18:45

Public\Common\Oak\Target\Armv7\Retail

Route.exe

57,344

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Checked

Tcpipreg.dll

98,304

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Checked

Route.exe

65,536

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Debug

Tcpipreg.dll

110,592

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Debug

Route.exe

49,152

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Retail

Tcpipreg.dll

57,344

30-Mar-2012

18:50

Public\Common\Oak\Target\Mipsii\Retail

Route.exe

57,344

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Checked

Tcpipreg.dll

98,304

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Checked

Route.exe

65,536

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Debug

Tcpipreg.dll

110,592

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Debug

Route.exe

49,152

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Retail

Tcpipreg.dll

57,344

30-Mar-2012

18:56

Public\Common\Oak\Target\Mipsii_fp\Retail

Route.exe

49,152

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Checked

Tcpipreg.dll

69,632

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Checked

Route.exe

57,344

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Debug

Tcpipreg.dll

77,824

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Debug

Route.exe

45,056

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Retail

Tcpipreg.dll

45,056

30-Mar-2012

19:01

Public\Common\Oak\Target\Sh4\Retail

Route.exe

45,056

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Checked

Tcpipreg.dll

61,440

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Checked

Route.exe

49,152

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Debug

Tcpipreg.dll

69,632

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Debug

Route.exe

40,960

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Retail

Tcpipreg.dll

36,864

30-Mar-2012

19:06

Public\Common\Oak\Target\X86\Retail

Flnglib.lib

857,252

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Checked

Tcpipreg.lib

1,998

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Checked

Vcompat.lib

418,932

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Checked

Flnglib.lib

900,306

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Debug

Tcpipreg.lib

1,998

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Debug

Vcompat.lib

441,886

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Debug

Flnglib.lib

746,116

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Retail

Tcpipreg.lib

1,998

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Retail

Vcompat.lib

411,224

30-Mar-2012

18:35

Public\Common\Oak\Lib\Armv5\Retail

Flnglib.lib

856,962

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Checked

Tcpipreg.lib

1,998

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Checked

Vcompat.lib

418,896

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Checked

Flnglib.lib

900,190

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Debug

Tcpipreg.lib

1,998

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Debug

Vcompat.lib

441,898

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Debug

Flnglib.lib

745,734

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Retail

Tcpipreg.lib

1,998

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Retail

Vcompat.lib

411,188

30-Mar-2012

18:40

Public\Common\Oak\Lib\Armv6\Retail

Flnglib.lib

848,072

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Checked

Tcpipreg.lib

1,998

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Checked

Vcompat.lib

417,982

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Checked

Flnglib.lib

893,048

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Debug

Tcpipreg.lib

1,998

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Debug

Vcompat.lib

441,336

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Debug

Flnglib.lib

742,766

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Retail

Tcpipreg.lib

1,998

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Retail

Vcompat.lib

410,740

30-Mar-2012

18:45

Public\Common\Oak\Lib\Armv7\Retail

Flnglib.lib

817,532

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Checked

Tcpipreg.lib

1,998

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Checked

Vcompat.lib

406,392

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Checked

Flnglib.lib

883,570

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Debug

Tcpipreg.lib

1,998

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Debug

Vcompat.lib

431,294

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Debug

Flnglib.lib

728,084

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Retail

Tcpipreg.lib

1,998

30-Mar-2012

18:50

Public\Common\Oak\Lib\Mipsii\Retail

Vcompat.lib

399,898

30-Mar-2012

18:49

Public\Common\Oak\Lib\Mipsii\Retail

Flnglib.lib

817,928

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Checked

Tcpipreg.lib

1,998

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Checked

Vcompat.lib

407,122

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Checked

Flnglib.lib

883,998

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Debug

Tcpipreg.lib

1,998

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Debug

Vcompat.lib

432,084

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Debug

Flnglib.lib

728,504

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Retail

Tcpipreg.lib

1,998

30-Mar-2012

18:56

Public\Common\Oak\Lib\Mipsii_fp\Retail

Vcompat.lib

400,698

30-Mar-2012

18:55

Public\Common\Oak\Lib\Mipsii_fp\Retail

Flnglib.lib

742,094

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Checked

Tcpipreg.lib

2,008

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Checked

Vcompat.lib

383,808

30-Mar-2012

19:00

Public\Common\Oak\Lib\Sh4\Checked

Flnglib.lib

793,386

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Debug

Tcpipreg.lib

2,008

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Debug

Vcompat.lib

405,648

30-Mar-2012

19:00

Public\Common\Oak\Lib\Sh4\Debug

Flnglib.lib

686,212

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Retail

Tcpipreg.lib

2,008

30-Mar-2012

19:01

Public\Common\Oak\Lib\Sh4\Retail

Vcompat.lib

384,870

30-Mar-2012

19:00

Public\Common\Oak\Lib\Sh4\Retail

Flnglib.lib

724,408

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Checked

Tcpipreg.lib

2,008

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Checked

Vcompat.lib

382,734

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Checked

Flnglib.lib

722,946

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Debug

Tcpipreg.lib

2,008

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Debug

Vcompat.lib

384,750

30-Mar-2012

19:05

Public\Common\Oak\Lib\X86\Debug

Flnglib.lib

649,538

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Retail

Tcpipreg.lib

2,008

30-Mar-2012

19:06

Public\Common\Oak\Lib\X86\Retail

Vcompat.lib

375,320

30-Mar-2012

19:05

Public\Common\Oak\Lib\X86\Retail

Wlanext.exe

184,320

30-Mar-2012

18:36

Public\Servers\Oak\Target\Armv5\Checked

Firewall.dll

32,768

30-Mar-2012

18:36

Public\Servers\Oak\Target\Armv5\Checked

Wlanext.exe

286,720

30-Mar-2012

18:36

Public\Servers\Oak\Target\Armv5\Debug

Firewall.dll

45,056

30-Mar-2012

18:36

Public\Servers\Oak\Target\Armv5\Debug

Wlanext.exe

90,112

30-Mar-2012

18:35

Public\Servers\Oak\Target\Armv5\Retail

Firewall.dll

24,576

30-Mar-2012

18:36

Public\Servers\Oak\Target\Armv5\Retail

Wlanext.exe

184,320

30-Mar-2012

18:41

Public\Servers\Oak\Target\Armv6\Checked

Firewall.dll

32,768

30-Mar-2012

18:41

Public\Servers\Oak\Target\Armv6\Checked

Wlanext.exe

286,720

30-Mar-2012

18:41

Public\Servers\Oak\Target\Armv6\Debug

Firewall.dll

45,056

30-Mar-2012

18:41

Public\Servers\Oak\Target\Armv6\Debug

Wlanext.exe

90,112

30-Mar-2012

18:40

Public\Servers\Oak\Target\Armv6\Retail

Firewall.dll

24,576

30-Mar-2012

18:41

Public\Servers\Oak\Target\Armv6\Retail

Wlanext.exe

180,224

30-Mar-2012

18:46

Public\Servers\Oak\Target\Armv7\Checked

Firewall.dll

32,768

30-Mar-2012

18:46

Public\Servers\Oak\Target\Armv7\Checked

Wlanext.exe

282,624

30-Mar-2012

18:46

Public\Servers\Oak\Target\Armv7\Debug

Firewall.dll

45,056

30-Mar-2012

18:46

Public\Servers\Oak\Target\Armv7\Debug

Wlanext.exe

90,112

30-Mar-2012

18:45

Public\Servers\Oak\Target\Armv7\Retail

Firewall.dll

24,576

30-Mar-2012

18:46

Public\Servers\Oak\Target\Armv7\Retail

Wlanext.exe

241,664

30-Mar-2012

18:50

Public\Servers\Oak\Target\Mipsii\Checked

Firewall.dll

36,864

30-Mar-2012

18:51

Public\Servers\Oak\Target\Mipsii\Checked

Wlanext.exe

335,872

30-Mar-2012

18:50

Public\Servers\Oak\Target\Mipsii\Debug

Firewall.dll

45,056

30-Mar-2012

18:51

Public\Servers\Oak\Target\Mipsii\Debug

Wlanext.exe

122,880

30-Mar-2012

18:50

Public\Servers\Oak\Target\Mipsii\Retail

Firewall.dll

28,672

30-Mar-2012

18:51

Public\Servers\Oak\Target\Mipsii\Retail

Wlanext.exe

241,664

30-Mar-2012

18:57

Public\Servers\Oak\Target\Mipsii_fp\Checked

Firewall.dll

36,864

30-Mar-2012

18:57

Public\Servers\Oak\Target\Mipsii_fp\Checked

Wlanext.exe

335,872

30-Mar-2012

18:56

Public\Servers\Oak\Target\Mipsii_fp\Debug

Firewall.dll

45,056

30-Mar-2012

18:57

Public\Servers\Oak\Target\Mipsii_fp\Debug

Wlanext.exe

122,880

30-Mar-2012

18:56

Public\Servers\Oak\Target\Mipsii_fp\Retail

Firewall.dll

28,672

30-Mar-2012

18:57

Public\Servers\Oak\Target\Mipsii_fp\Retail

Wlanext.exe

167,936

30-Mar-2012

19:01

Public\Servers\Oak\Target\Sh4\Checked

Firewall.dll

32,768

30-Mar-2012

19:02

Public\Servers\Oak\Target\Sh4\Checked

Wlanext.exe

225,280

30-Mar-2012

19:01

Public\Servers\Oak\Target\Sh4\Debug

Firewall.dll

40,960

30-Mar-2012

19:01

Public\Servers\Oak\Target\Sh4\Debug

Wlanext.exe

90,112

30-Mar-2012

19:01

Public\Servers\Oak\Target\Sh4\Retail

Firewall.dll

24,576

30-Mar-2012

19:01

Public\Servers\Oak\Target\Sh4\Retail

Wlanext.exe

139,264

30-Mar-2012

19:06

Public\Servers\Oak\Target\X86\Checked

Firewall.dll

28,672

30-Mar-2012

19:07

Public\Servers\Oak\Target\X86\Checked

Wlanext.exe

208,896

30-Mar-2012

19:06

Public\Servers\Oak\Target\X86\Debug

Firewall.dll

36,864

30-Mar-2012

19:06

Public\Servers\Oak\Target\X86\Debug

Wlanext.exe

69,632

30-Mar-2012

19:06

Public\Servers\Oak\Target\X86\Retail

Firewall.dll

20,480

30-Mar-2012

19:06

Public\Servers\Oak\Target\X86\Retail

References

For more information about the NdisRegisterAdapter and NdisDeregisterAdapter functions, visit the following MSDN websites:

NdisRegisterAdapter

NdisDeregisterAdapterFor more information about the IOCTL_NDIS_REGISTER_ADAPTER and IOCTL_NDIS_DEREGISTER_ADAPTER NDIS DeviceIoControl requests, visit the following MSDN websites:

IOCTL_NDIS_REGISTER_ADAPTER

IOCTL_NDIS_DEREGISTER_ADAPTERFor more information about the core process of the Windows Embedded Compact 7 system, visit the following MSDN website:

Kernel (Windows Embedded Compact 7)For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

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