how do you determine if a cmd shell executed successful in vb.net

if you run a command prompt to execute say psexec, how can you determine if the error code was 0 or not?
i tried
error1="cmd.exe /c ....."
if error1 <>0 then
 msgbox("there was an error")

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it doesn't work though so again how do i determine if a cmd shell executed successfully?
bbimisAsked:
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N8iveITCommented:
During testing ... if you either (1) put a "pause" at the end of the CMD commands or (2) put something like "echo CMDScriptRan > c:\ItRan.txt" at the end of the CMD commands.

This should tell you if it is executing the CMD script(s). I would probably do (2) then delete the file and remove the echo line from the CMD lines, once it seems to be working correctly.
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bbimisAuthor Commented:
well i was wanting to capture the error code if possible. if error is 0 then it was successful if not 0 then it failed
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efrimpolCommented:
sample batch file that <--- means brief description of action being taken

Echo Off
cls
cd C:\MYBATS  <--- directory where i store my batch file"
net use z: <---"create a map to one of my server shares"
echo Copying started at %date% %time%>>RunTimes.txt <--- notice the date / time stamp being written to a text file
copy z:\*.* /y "copy all my files from mapped drive to the local drive" <--- begin copying files
echo Copying finished at %date% %time%>>RunTimes.txt <--- another date / time stamp
echo Completed Successfully at %date% %time%>>RunTimes.txt <--- final date / time stamp
echo "">>RunTimes.txt <---just writes a blank line to file to separate entries
net use z: /del <--- delete the server share

You end up with a RUNTIMES.TXT file and the following information:

Copying started at Sat 05/05/2018 21:00:01.55
Copying finished at Sat 05/05/2018 21:01:44.30
Completed Successfully at Sat 05/05/2018 21:01:44.30
""
Copying started at Sun 05/06/2018 21:00:01.87
Copying finished at Sun 05/06/2018 21:01:24.45
Completed Successfully at Sun 05/06/2018 21:01:24.45
""
Copying started at Mon 05/07/2018 21:00:01.50
Copying finished at Mon 05/07/2018 21:01:36.87
Completed Successfully at Mon 05/07/2018 21:01:36.87
""
Copying started at Tue 05/08/2018 21:00:01.32
Copying finished at Tue 05/08/2018 21:01:21.92
Completed Successfully at Tue 05/08/2018 21:01:21.92
""
Copying started at Wed 05/09/2018 21:00:01.66
Copying finished at Wed 05/09/2018 21:01:22.18
Completed Successfully at Wed 05/09/2018 21:01:22.18

and so on and so on....
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N8iveITCommented:
I did some testing then research. Learn something new every day!

This may assist what you are wanting to confirm (see https://blogs.msdn.microsoft.com/oldnewthing/20080926-00/?p=20743 ); specifically his comments at the end "So you can perform other types of tests against the error level, for example, to perform an equality test:
IF %ERRORLEVEL% EQU 1 echo Different!" ... plus others comments on the post itself.

They should give you some ideas how to determine the errorlevel, depending on the complexity of what you are running.
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bbimisAuthor Commented:
so how do you do it in vb.net?
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N8iveITCommented:
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bbimisAuthor Commented:
This gave me what i needed. Thanks for the help.
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