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Shell to an executable but have it run from another directory

Posted on 2003-02-20
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Last Modified: 2010-05-01
Hi All!
(first time posting so please forgive any procedure errors)

My question is this:
I am trying to shell out to an executable - mylog.exe - but the mylog.exe looks to the CURRENT running directory to write to a log file.  Since VB kicks this process off from the "C:\Program Files\Microsoft Visual Studio\VB98" and not the directory that the executable is under I would like to ask if there is a way to do this?  to let the 'running' directory be the directory from the executables location.
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Question by:Zaar
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4 Comments
 
LVL 18

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bobbit31 earned 200 total points
ID: 7989862
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Private Const SW_SHOWNORMAL = 1

public sub Command1_Click()
   Dim lRes as Long
   lRes = ShellExecute (0, "open", "<path to exe>", "<params, vbNullString if none>", "<***working directory***>", SW_SHWONORMAL)
end sub
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LVL 18

Expert Comment

by:bobbit31
ID: 7989863
oops, SW_SHWONORMAL should be, SW_SHOWNORMAL
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Expert Comment

by:FRoeCassNet
ID: 7991417
You're running into the directory problem because you're running it under the development environment, when you create a .EXE file and run it, your path should be straightened out, because it's running your app and not VB6 interpreting your code.
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Author Comment

by:Zaar
ID: 7997023
Thanks man!  That did the trick!  How cool is this site??? Post a question and it gets answered right away - AWESOME!

Anyway, thanks for the comment.  I called a friend also about an hour ago and he gave me a suggestion:

ChDir = App.Path

I tried both of the answers and found them both useful in particular circumstances.  If one does not want to change the entire app's working directory and single out just the .exe (or .bat or .cmd) then your code Bobbit31 is the way to go, if a more simple solution is needed and one does not mind changing the entire apps working dir to the .exe path then ChDir works.  I am just unaware of the drawbacks of ChDir yet.

Thanks for the help guys, I have just found a GREAT Q and A forum!!!!!

Regards,
Jason
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