Question

I have a problem that causes my whole project to function incorrect.
Later I found out what was causing it, and I can’t fix it.
The problem is my VB.net application cannot find the file, and I’m 100% sure the file is there.
(to be honest I have to open minecraft.jar in \bin\minecraft.jar, relative from the application. But I tried it with a text file and it doesn’t work either)

    Try
        Shell(Application.StartupPath + "\options.txt")
    Catch Ex As Exception
        MsgBox(ErrorToString) ' I've got file not found..
        MsgBox(Application.StartupPath + "\options.txt") 'Displays the path to my file, and in Explorer (Windows) it opens the file
    End Try

Answer 1

Shell expects a path to an executable. It will throw a FileNotFindException even if the file is there when it is not an executable.

From the documentation:

Exceptions

FileNotFoundException – Shell cannot start the named program.

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If you want windows to decide which programm to use to open your file, use Process.Start instead.

Process.Start(Application.StartupPath + "\options.txt")

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EDIT:

OK, you totally changed your question, but I’m cool with that:

“Can’t access jarfile C:\users\max korlaar\dropbox\max ” And the folder name isn’t max.. It is max & alex.

You have a space in your paths, so you have to quote it (put in between two ").

Dim args As String = "-jar  -natives""{1}"" -lwjgl""{2}"" ...etc..etc..."

Otherwise, the java executable will not be able to distinguish between the arguments you pass to it.