Vb 2010: My app crasching...

Hello!
I have developed an app in VB 2010 Express. It contains some forms (of course) and images from a resource. I have a Windows Mediaplayer too. This runs well on my x86 Windows 7 pro-pc, but when I try it on another Windows 7 x86 it only crash. At first it shown up in process manager, but short time later it disappear from the list (crash). The target pc has Net.Framework 4.5 and I have tried to compile my program several times and even copy directly from the debug-folder. It contains the required Windows Mediaplayer-files AxInterop.WMPLib.dll and Interop.WMPLib.dll.

I think there is some problem with the media player, because I made a clean test app with some buttons and images and it worked well on the target computer. Any idea what's wrong? :)

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Originally Posted by C2000

Hello!
I have developed an app in VB 2010 Express. It contains some forms (of course) and images from a resource. I have a Windows Mediaplayer too. This runs well on my x86 Windows 7 pro-pc, but when I try it on another Windows 7 x86 it only crash. At first it shown up in process manager, but short time later it disappear from the list (crash). The target pc has Net.Framework 4.5 and I have tried to compile my program several times and even copy directly from the debug-folder. It contains the required Windows Mediaplayer-files AxInterop.WMPLib.dll and Interop.WMPLib.dll.

I think there is some problem with the media player, because I made a clean test app with some buttons and images and it worked well on the target computer. Any idea what's wrong? :)

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Well...no, not really. I can clearly see your program in Explorer (as well as some interesting words; Swedish Windows?) but without my Crystal Ball Decompiler Tool (It's in the shop for repairs again; blew out the Deobfuscator again :/) or my Insta-Reader Glasses, I really can't tell you what might be wrong with your program. It might be really nice to see, say, the source code. Do you also have try-catch blocks in your code? That's very important and can really help out with fixing problems or bugs. Help us so we can help you!

You had right, It's swedish! I can send the project files in a pm to you if you want.

And I don't use try-catch blocks because I'm not familiar with it...:o

Quote:

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Originally Posted by C2000

You had right, It's swedish! I can send the project files in a pm to you if you want.

And I don't use try-catch blocks because I'm not familiar with it...:o

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I am at work so I can't accept project files. It's much easier if you post code on the forum instead. Also, you really should familiarize yourself with Try-Catch blocks. They are very effective when it comes to Exception handling.

Now I checked the app in configuration manager, I tried to switch the output folder to release instead of debug. This gave me two warnings. Maybe this cause the app to crash on the other computer. (?)

Code:

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Warning        1       
Type library importer encountered a property getter 'sessionPlaylistCount' on type 'WMPLib.IWMPNowPlayingHelperDispatch' without a valid return type.  The importer will attempt to import this property as a method instead.       


Warning        2       
At least one of the arguments for 'IWMPGraphEventHandler.NotifyAcquireCredentials' cannot be marshaled by the runtime marshaler.  Such arguments will therefore be passed as a pointer and may require unsafe code to manipulate.

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I'm curious to see if you finally got your app working!? What was the problem...and how did you fixed it?
Thanks!!