Consider the following scenario:
- You have more than 16 network providers on a Windows Server
2008-based computer.
- An application calls the WNetOpenEnum function to enumerate the network resources.
In this scenario, the application may encounter an access
violation and then crash.
This problem may occur because the Multiple Provider Router
(MPR) module does not manage allocated memory space correctly when the number
of network providers exceeds 16.
Hotfix information
A
supported hotfix is available from Microsoft. However, this hotfix is intended
to correct only the problem that is described in this article. Apply this
hotfix only to systems that are experiencing this specific problem. This hotfix
might receive additional testing. Therefore, if you are not severely affected
by this problem, we recommend that you wait for the next software update that
contains this hotfix.
If the hotfix is available for download, there
is a "Hotfix download available" section at the top of this Knowledge Base
article. If this section does not appear, contact Microsoft Customer Service
and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required,
you might have to create a separate service request. The usual support costs
will apply to additional support questions and issues that do not qualify for
this specific hotfix. For a complete list of Microsoft Customer Service and
Support telephone numbers or to create a separate service request, visit the
following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for
which the hotfix is available. If you do not see your language, it is because a
hotfix is not available for that language.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request†page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
Prerequisites
To apply this hotfix, you must have Windows Server 2008 and
Windows Vista Service Pack 1 (SP1) installed.
Note Windows Vista SP1 is integrated into Windows Server 2008.
Restart requirement
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix 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.
Note The MANIFEST files (.manifest) and the MUM files (.mum) that are
installed for each environment are
listed separately in the "Additional file
information for Windows Server 2008 and for Windows Vista" section. MANIFEST
and MUM files and the associated security catalog (.cat) files are very
important for maintaining the state of the updated component. The security
catalog files, for which the attributes are not listed, are signed with a
Microsoft digital signature.
For all supported 32-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| Mpr.dll | 6.0.6001.22230 | 68,608 | 27-Jul-2008 | 23:00 | x86 |
For all supported 64-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| Mpr.dll | 6.0.6001.22230 | 85,504 | 27-Jul-2008 | 23:29 | x64 |
| Mpr.dll | 6.0.6001.22230 | 68,608 | 27-Jul-2008 | 23:00 | x86 |
For all supported Windows Server 2008 Itanium-Based Systems operating systems
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| Mpr.dll | 6.0.6001.22230 | 190,976 | 27-Jul-2008 | 23:13 | IA-64 |
| Mpr.dll | 6.0.6001.22230 | 68,608 | 27-Jul-2008 | 23:00 | x86 |
Additional file information for Windows Server 2008 and of Windows Vista
Additional files for all supported 32-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
| File
name | Package_1_for_kb955512~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,771 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_2_for_kb955512~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,938 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_3_for_kb955512~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,776 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_4_for_kb955512~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,776 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,367 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_client~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,431 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,421 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,423 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,425 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,431 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,422 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,429 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | X86_e2b246a0b7cb2fa91e9e9010a1776ee7_31bf3856ad364e35_6.0.6001.22230_none_47ced52fa980d83a.manifest |
| File version | Not Applicable |
| File size | 691 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | X86_microsoft-windows-mpr_31bf3856ad364e35_6.0.6001.22230_none_ae3ef85f71274265.manifest |
| File version | Not Applicable |
| File size | 7,628 |
| Date (UTC) | 27-Jul-2008 |
| Time (UTC) | 23:24 |
| Platform | Not Applicable |
|
Additional files for all supported 64-bit versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
| File
name | Amd64_17d4095db222d886bb21c9b649c7245d_31bf3856ad364e35_6.0.6001.22230_none_3d6799ed39c01554.manifest |
| File version | Not Applicable |
| File size | 1,030 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Amd64_f8906b604d1519b5194f42e06007a895_31bf3856ad364e35_6.0.6001.22230_none_591b970442d537b2.manifest |
| File version | Not Applicable |
| File size | 695 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Amd64_microsoft-windows-mpr_31bf3856ad364e35_6.0.6001.22230_none_0a5d93e32984b39b.manifest |
| File version | Not Applicable |
| File size | 7,648 |
| Date (UTC) | 27-Jul-2008 |
| Time (UTC) | 23:59 |
| Platform | Not Applicable |
|
| File
name | Package_1_for_kb955512~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,781 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_2_for_kb955512~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 2,159 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_3_for_kb955512~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,995 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_4_for_kb955512~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,995 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,375 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_client~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,439 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,429 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,431 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,433 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,439 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,430 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,437 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | X86_microsoft-windows-mpr_31bf3856ad364e35_6.0.6001.22230_none_ae3ef85f71274265.manifest |
| File version | Not Applicable |
| File size | 7,628 |
| Date (UTC) | 27-Jul-2008 |
| Time (UTC) | 23:24 |
| Platform | Not Applicable |
|
Additional files for all supported Windows Server 2008 Itanium-Based Systems operating systems
Collapse this tableExpand this table
| File
name | Ia64_06bb89c9e19131996ebb21f986a5690a_31bf3856ad364e35_6.0.6001.22230_none_799eb5e44b96dd4b.manifest |
| File version | Not Applicable |
| File size | 1,028 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Ia64_860fd3ab3e172bb4f7526f145fbb54ba_31bf3856ad364e35_6.0.6001.22230_none_4227c0e5ee018a4b.manifest |
| File version | Not Applicable |
| File size | 693 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Ia64_microsoft-windows-mpr_31bf3856ad364e35_6.0.6001.22230_none_ae409c5571254b61.manifest |
| File version | Not Applicable |
| File size | 7,638 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 00:36 |
| Platform | Not Applicable |
|
| File
name | Package_1_for_kb955512~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,776 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_2_for_kb955512~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,990 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_3_for_kb955512~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,990 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,425 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,426 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,429 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_server~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,434 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,426 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | Package_for_kb955512_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum |
| File version | Not Applicable |
| File size | 1,433 |
| Date (UTC) | 28-Jul-2008 |
| Time (UTC) | 21:16 |
| Platform | Not Applicable |
|
| File
name | X86_microsoft-windows-mpr_31bf3856ad364e35_6.0.6001.22230_none_ae3ef85f71274265.manifest |
| File version | Not Applicable |
| File size | 7,628 |
| Date (UTC) | 27-Jul-2008 |
| Time (UTC) | 23:24 |
| Platform | Not Applicable |
|
To work around this problem, uninstall any network
providers that you do not regularly use.
Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
A network provider is a .dll file that enables Windows to
interact with other kinds of networks, such as with Novell networks. A network
provider is a client of the Windows WNet driver. A network provider implements
network-specific actions, such as creating a connection. Additionally, it
exposes a common interface to Windows. This interface is called the Network
Provider API, and it consists of functions that are implemented by the network
provider. You can create a network provider DLL to support new network
protocols.
Because each network exposes a common interface through
its provider, Windows can interact with several kinds of networks without
knowing their network-specific implementation details.
The Multiple
Provider Router (MPR) handles communication with all the network providers on
the system, and it presents an integrated network to the user.
The
third-party products that this article discusses are manufactured by companies
that are independent of Microsoft. Microsoft makes no warranty, implied or
otherwise, about the performance or reliability of these
products.
For more information about software update terminology, click the
following article number to view the article in the Microsoft Knowledge Base:
824684Â
(http://kbalertz.com/Feedback.aspx?kbNumber=824684/
)
Description of the standard terminology that is used to describe Microsoft software updates