External DLL not working when deployed

2012 2 27
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Hi, so I'm using Matlab R2009b, and i developed a C dll that is called TalkSerial.dll when running in matlab, it works flawlessy, but when i deploy it, it gives an error that it cant find the TalkSerial_proto.m, so I used the loadlibrary with mfilename to create the TalkSerial_proto and added it to the deploy project, it worked, but now it gives another error, that says The specified module could not be found... any ideas?

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Bruno
Bruno 2012-2-28

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It worked, def file was fine... it was just a driver I forgot to install... (dumb, DUMB me!!!).....

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Kaustubha Govind
Kaustubha Govind 2012-2-27

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Most likely, the DLL you are attempting to load, or one of it's dependencies were not found on the deployed machine. I would recommend getting Dependency Walker, and run your deployed executable with it to profile missing dependencies.

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Bruno
Bruno 2012-2-27
It helped, turns out it was missing the VC 2005 Redist package, (it had only the 2008 installed, I thought it would be ok since i build it with VC8 compiler) but it still points an error to MPR.dll although this dll can be found in Windows\System32, I was thinking, I developed the DLL using the external def file instead of the declspec method, could this be the problem? even when it works fine with matlab installed machines?

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Image Analyst
Image Analyst 2012-2-28

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MPR is not the problem. That often shows up as missing with no fatal effects. Have you tried everything in the FAQ: http://matlab.wikia.com/wiki/FAQ#My_standalone_executable_won.27t_run_on_the_target_computer._What_can_I_try.3F Where is your DLL and what does your app report for ctfroot?

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