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Passing Parameters thrrough and HTML link to an .exe

Posted on 2007-11-16
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Last Modified: 2008-02-01
How do I create an link that passes parameters to an .exe?

Pretty much I needed to give my users a link that has the password ingrained in it already.
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Question by:z018196
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11 Comments
 
LVL 76

Expert Comment

by:David Lee
ID: 20300001
Hi, z018196.

Create a script or command file that launches the exe and passes whatever information it requires.  Link to the script/command file.
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Author Comment

by:z018196
ID: 20300022
The only problem is that I'd need a seperate script/command-file for each user... I was hoping only to have to make a unique link.  Is there any coding I can embed in the link?
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Expert Comment

by:David Lee
ID: 20301683
> I'd need a seperate script/command-file for each user
Perhaps, but not necessarily.  You could retrieve the username in the script and use a CASE or IF ... THEN sequence to get the right password.  Something like this:

    Set WshProcessEnvironment = WshShell.Environment("Process")
    varUsername = wshProcessEnvironment.Item("UserName")
    Select Case varUsername
        Case "Username1"
            varPassword = "PasswordA"
        Case "Username2"
            varPassword = "PasswordB"
    End Select
    Set objShell = WScript.CreateObject("WScript.Shell")
    objShell.Run "C:\Somepath\MyExecutable.exe " & varPassword
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Author Comment

by:z018196
ID: 20312655
I don't know if that will work in my case though.  Think of it like this.  I have a database(table) with a bunch of records and each of them has a unique identifier.  I was hoping I could send out an email, when a record is created, that would have the unique Id for that record included.  When the link was pushed, a report would get generated for that record.  I can create a VB.Net app that just asks for the unique ID but I was hoping to embed it into the link so that people couldn't just enter in any number.  Does that make sense?
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LVL 76

Expert Comment

by:David Lee
ID: 20313239
Sure.  All you need to do is send a link with a parameter.  Something like

    http://company.com/somepage.aspx?id=UniqueID
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Author Comment

by:z018196
ID: 20313455
how to capture that parameter?  Below is my code... can you tell me what I'm missing?  I can access the application correctly, which is good, now I just need to capture the parameter.
 
link in email:
file:///C:\Misc\App\App\bin\Release\App.exe?id=52
 
code in executable:
Dim str as String
Dim param as Integer
 
For Each str in Environment.GetCommandLineArgs()
    param = str  
Next
 
I don't think the GetCommandLineAgrs() is correct.
 
Thanks,
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LVL 76

Accepted Solution

by:
David Lee earned 500 total points
ID: 20313516
Here's a page that describes how to format and retrieve command line parameters from a VB.net application.

http://www.devx.com/dotnet/Article/10115/1954?pf=true
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Author Comment

by:z018196
ID: 20314928
I took a look at the article but couldn't find what I needed.  I can't get the GetCommandLineAgrs() to work right.  It doesn't get the parameter I pass to it, just the link to the executable.

Any suggestions?
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LVL 76

Expert Comment

by:David Lee
ID: 20315096
Please show me the link that you're using.
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Author Comment

by:z018196
ID: 20363326
file:///C:\Misc\App\bin\Release\App.exe?id=52    
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LVL 76

Expert Comment

by:David Lee
ID: 20384172
Try this instead

    file:///C:\Misc\App\bin\Release\App.exe%2052

or

    file:///C:\Misc\App\bin\Release\App.exe%20-id%2052

Look back at that article I linked to and check the section titled "Generic Parsing Guidelines".
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