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Csharp running batch file Issue

Posted on 2011-10-04
Medium Priority
Last Modified: 2012-05-12
I'm trying to run a batch file on the server using an asp.net csharp webpage. After I execute below code  the batch is not showing that it is running and the webpage is not throwing an error.
Here is the code in the webpage button :
string str_Path = Server.MapPath(".") + "\\TLogExecutor.bat";
            ProcessStartInfo processInfo = new ProcessStartInfo(str_Path);
            processInfo.UseShellExecute = false;
            Process batchProcess = new Process();
            batchProcess.StartInfo = processInfo;

Here is the batch file code :
PSEXEC -accepteula \\tlog-server "e:\Sched_Processes\TLogExecutor_Launch_Rerun.bat" > D:\Inetpub\wwwroot_2\TLogStatus\Log.txt

Please notice that Batch file is trying to run another batch on another server ?
Any suggestions ?

Question by:ankouny
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LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36909727
Does the account you're running your web page (app pool) as have permissions on the other server? PSExec will use the account that is executing it if you do not specify a username and password for the remote machine.

Author Comment

ID: 36909735
How do I know which account it is running or using ?
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36909760
If you haven't assigned an app pool specifically, then it is most likely using the default app pool and running as the ASPNET user. It might be easier for you to create a service account on the remote machine and pass the username and password in the command line. However, this could be a security concern. You may want to do this, though, so that you can test that it actually works. If it works at that point, you can go back and fiddle with your IIS user accounts to avoid having to pass credentials on the command line.

By "command line" I am referring to the "PSEXEC..." line you have in your batch file.
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Author Comment

ID: 36909785
If I go now to the server and run this batch file manually, it works, but when I run the Csharp code above it wont run and it wont throw an error.
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36909928
Right. When you log into the server, you are not using the ASPNET user; you are using, most likely, your account. You probably have an account on the remote machine as well (or you are a member of a domain and you are registered on that machine). When you log into the local server and run PSExec, your credentials are sent to the remote machine to confirm that you have an account there (or on the domain).

Author Comment

ID: 36910415
Your right, I'm trying to login using my domain name credentials, but I 've also added in the security properties of this batch file the aspnet user to read and execute but it is not executing ...
Should I schedule the batch file to run through SQL server and then I call SQL serevre job through the web page ? is it a good idea to do this ?  
LVL 75

Accepted Solution

käµfm³d   👽 earned 2000 total points
ID: 36910857
You have to understand how PSExcec works. Giving the web-site's user rights to execute the program is one thing; having rights on the remote machine is another thing. You either need to pass a username and password to PSExec in the batch file or you need to run your web-site as a user that has rights on both machines.

For more info on PSExec, see: http://technet.microsoft.com/en-us/sysinternals/bb897553 , particularly the blurb under "program arguments."

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