When you try to install an application that uses the multi-package feature on a computer that is running Windows 7 or Windows Server 2008 R2, the installation may fail. Additionally, error 1601 occurs.
This issue occurs because Msiexec.exe crashes during such installation.
Note If an installation package uses the multiple-package installation feature together with many custom actions, Msiexec.exe may crash because of a race condition.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Prerequisites
To apply this, you must be running one of the following operating systems:
Windows 7
Windows 7 Service Pack 1 (SP1)
Windows Server 2008 R2
Windows Server 2008 R2 SP1
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2
Registry information
To apply this hotfix, you do not have to make any changes to the registry.
Restart requirement
You must restart the computer after you apply this update.
Hotfix replacement information
This update does not replace a previously released update.
File information
The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Collapse this tableExpand this table
Version
Product
Milestone
Service branch
6.1.760
0.16xxx
Windows 7 and Windows Server 2008 R2
RTM
GDR
6.1.760
0.21xxx
Windows 7 and Windows Server 2008 R2
RTM
LDR
6.1.760
1.17xxx
Windows 7 and Windows Server 2008 R2
SP1
GDR
6.1.760
1.21xxx
Windows 7 and Windows Server 2008 R2
SP1
LDR
GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST 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 x86-based versions of Windows 7
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File name
File version
File size
Date
Time
Msi.dll
5.0.7600.16992
2,342,400
07-Apr-2012
11:34
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
Msi.dll
5.0.7600.21183
2,342,912
07-Apr-2012
11:37
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
Msi.dll
5.0.7601.17807
2,342,400
07-Apr-2012
11:26
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
Msi.dll
5.0.7601.21960
2,342,912
07-Apr-2012
22:42
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File name
File version
File size
Date
Time
Platform
Msi.dll
5.0.7600.16992
3,213,824
07-Apr-2012
12:18
x64
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:29
x64
Msi.dll
5.0.7600.21183
3,217,408
07-Apr-2012
12:28
x64
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:29
x64
Msi.dll
5.0.7601.17807
3,216,384
07-Apr-2012
12:31
x64
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:29
x64
Msi.dll
5.0.7601.21960
3,217,408
07-Apr-2012
23:36
x64
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:29
x64
Msi.dll
5.0.7600.16992
2,342,400
07-Apr-2012
11:34
x86
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
x86
Msi.dll
5.0.7600.21183
2,342,912
07-Apr-2012
11:37
x86
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
x86
Msi.dll
5.0.7601.17807
2,342,400
07-Apr-2012
11:26
x86
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
x86
Msi.dll
5.0.7601.21960
2,342,912
07-Apr-2012
22:42
x86
Msimsg.dll
5.0.7600.16385
25,088
14-Jul-2009
01:07
x86
For all supported IA-64-based versions of Windows Server 2008 R2