troubleshooting Question

Issue with ShellExecuteEx when run from a Service

Avatar of Sachin_registered_786
Sachin_registered_786 asked on
Windows VistaInstallation
8 Comments1 Solution4724 ViewsLast Modified:
I am facing issue in executing an msi package on Windows Vista using ShellExecuteEx from a Service.

As per what I understand, Executing anything that requires elevation using CreateProcess/CreateProcessAsUser will result in Error 740. The solution to this is use ShellExecute(Ex). ShellExecute makes sure that the elevation prompt occurs (if needed).

Now, Here is what I want to do.
I want to execute an msi which requires elevation. The command I am trying to execute through ShellExecuteEx is "c:\windows\sytem32\msiexec.exe /i c:\temp\Flash.msi -q". (I am specifying "runas" in lpverb member of SHELLEXECUTEINFO). This is executed by my service named "MyService". I know that on Vista a service cannot display UI. But this msi is capable of running in quiet mode. I verified this by executing the above command from cmd prompt. It worked fine.

Please let me know What is the problem in executing msi from the service.

Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 8 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 8 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros