Error opening installation log file when attempting to install/uninstall software

I was recently attempting to uninstall an application on Windows 7 Professional when I received the below error message :

‚ÄúError opening installation log file. Verify that the specified location exists and is writable.‚ÄĚ error when attempting to uninstall an application

This is apparently a known issue with the mentioned operating system and the workaround is to restart the explorer.exe process within Task Manager. This is due to the installer service attempting to write to ‘C:\Windows\System32’ and addressing the directory as a file.

To confirm, following a restart I was able to uninstall/install applications without experiencing this issue.

For full details see –¬†http://support.microsoft.com/kb/2564571

Web Service terminates on clients connecting to WebDAV resources

I recently had a number of users report that they were unable to connect to a mapped network drive to a WebDAV resource folder. On investigation, the mapped network drive was disconnected from Windows Explorer and the following error events had been reported in the application log:

Faulting application name: svchost.exe_WebClient, version: 6.1.7600.16385, time stamp: 0x4a5bc3c1
Faulting module name: webclnt.dll, version: 6.1.7600.20967, time stamp: 0x4dce2f92
Exception code: 0xc0000005
Fault offset: 0x0000000000027bac
Faulting process id: 0x17b4
Faulting application start time: 0x01cebaa35e44cc71
Faulting application path: C:\Windows\system32\svchost.exe
Faulting module path: c:\windows\system32\webclnt.dll
Report Id: 9bf15756-2696-11e3-b9b6-005056a561e1

Faulting application name: svchost.exe_WebClient, version: 6.1.7600.16385, time stamp: 0x4a5bc3c1
Faulting module name: webclnt.dll, version: 6.1.7600.20967, time stamp: 0x4dce2f92
Exception code: 0xc0000005
Fault offset: 0x000000000000502b
Faulting process id: 0x1188
Faulting application start time: 0x01cebaa319128423
Faulting application path: C:\Windows\system32\svchost.exe
Faulting module path: c:\windows\system32\webclnt.dll
Report Id: 5cb189bc-2696-11e3-b9b6-005056a561e1

Faulting application name: svchost.exe_WebClient, version: 6.1.7600.16385, time stamp: 0x4a5bc3c1
Faulting module name: webclnt.dll, version: 6.1.7600.20967, time stamp: 0x4dce2f92
Exception code: 0xc0000005
Fault offset: 0x0000000000027bac
Faulting process id: 0x318
Faulting application start time: 0x01ceb9f521176cd8
Faulting application path: C:\Windows\system32\svchost.exe
Faulting module path: c:\windows\system32\webclnt.dll
Report Id: 54600b6d-2696-11e3-b9b6-005056a561e1

This issue appears to be caused by an access violation issue  in the the WebClient service which causes the service to crash intermittently and to impact clients running on Windows 7 and Windows Server 2008 R2.

This is a known issue and there is a support hotifx available from Microsoft to resolve this issue and is available from http://support.microsoft.com/kb/2548470.

Once installed, the issue now seems to have been resolved.

Unable to run Microsoft ActiveX Data Objects application – Run time error “430”

Following the install of KB983246 a Microsoft ActiveX Data Objects application (ADO) returns the following error message:

Run time error “430”: Class does not support Automation or does not support the expected interface.

This is due to the version of the msado15.dll which is referenced on the workstation that has compiled the ADO.

The version msado15.dll installed by KB983246 is 6.1.7601.17514 and will not run on any previous versions of this file.

To resolve this issue you will need to install Windows 7 and Windows Server 2008 R2 Service Pack 1 (KB976932) to update msado15.dll as Microsoft have now retired KB983246.