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You cannot use the "runas" command to print from different user accounts in a single session from a 32-bit program on a computer that is running 64-bit version of Windows Server 2008 or Windows Vista
Article ID: 972616 - View products that this article applies to.
On a computer that is running a 64-bit version of Windows, you cannot use the runas command to print from a 32-bit program from different user accounts in a single session.
This behavior occurs because the system uses the Splwow64.exe process to translate between 32-bit programs and the driver model of the 64-bit operating system. After a print job is finished in a user account, the Splwow64.exe process stays in memory for a period of time to increase system performance. However, the Splwow64 process does not end as expected. Therefore, when you use the runas command to start a 32-bit program, you cannot print from different user accounts.
For Windows Server 2003, 64-bit, all versions
No hotfix is available for this issue.
For more information about similar issue on Windows Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/923357/LN/ )You cannot use the RUNAS command to print from a 32-bit program in different user accounts in a single session on a computer that is running a 64-bit version of Microsoft Windows
For Windows Server 2008 and Windows Vista 64-bit versions
A hotfix is available to resolve this issue. This hotfix sets the default time-out value for the period in which the Splwow64.exe process remains in memory. This default value is two minutes. Therefore, the Splwow64.exe process shuts down two minutes after the last print job in one user account closes. Additionally, you can configure this time-out value by changing the registry value in the "Registry Information" section below.
For Windows Server 2008 R2 and Windows 7 64-bit versions
When you print from multiple 32-bit applications that run in different user accounts within one session, multiple Splwow64.exe instances run under each user account for that application. This means that an instance of Splwow64.exe works independently and does not interfere with other running instances. This overcomes the limitation of a only one user being able to print from a single session.
Hotfix informationA 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 the problem described in this article. 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:
http://support.microsoft.com/contactus/?ws=supportNote 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.
PrerequisitesTo apply this hotfix, the computer must run one of the following operating systems:
Restart requirementYou do not have to restart the computer after you apply this hotfix.
Registry informationTo configure the time-out value, follow these steps.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
File informationThe 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.
For all supported x64-based versions of Windows Server 2008 and Windows Vista
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For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
To work around this problem, use one of the following methods.
Workaround 1Do not use the runas command to print.
Workaround 2End the Splwow64.exe process before you use the runas command to print from a 32-bit program in different user accounts in a single session.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
On a computer that is running a 64-bit version of Microsoft Windows, only one user account may print from a 32-bit program in a single session. In a single session, the user account that prints first is the only user account in which a 32-bit process can print, until a time-out occurs or the session ends. If another user account in the same session tries to print before the session ends, the user account receives an "Invalid Handle" error message. Additionally, the print request is unsuccessful.
More than one process can run in different user accounts in the same session. Examples include the following:
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 972616 - Last Review: August 6, 2012 - Revision: 11.0