I want to upgrade my LABVIEW 4.0 code to LABVIEW 8.0. I am using LV 7.0 to do this. The problem i am facing is 16 bit defined DLL's. As I cannot open it or see whats inside. These DLL's are used by different libraries

rename these .jpg files and rename them as LATTICE.DLL and COMPARE.DLL. I also have uploaded the vi which is creating problem
Taimoor
timmy
Attachments:
LATTICE.jpg ‏45 KB
COMPARE.jpg ‏29 KB
75000D20.LLB ‏1383 KB

I didn't look at the VI source code but the other comment doesn't promis much good!
For the DLLs you need to find a way to replace those DLLs with something else. 16 Bit DLLs are for Windows 3.1 and there is no way to get them to work in 32 Bit Windows.
So your options are, to either stay with Windows 3.1 (good luck with that !!) or maybe Windows 98 and use a LabVIEW 16 Bit version (<= version 5.1 only) to run your program, or get those DLLs removed/replaced.
The Compare.DLL might be just some comparison routines which might be easily implemented in LabVIEW itself. The Lattice.DLL is most likely a DLL which tries to do direct register access somehow which is in Windows 32 a protected operation and shouldn't be done in an application but instead in a kernel driver. In the latest LabVIEW versions with 64 Bit support it is even completely unsupported to do that.
I would say there is a lot of work ahead by trying to figure out what this DLL does and how to replace it. You need to at least get a 32 Bit version of that DLL if it is available and change the VIs accordingly as there might be difference in parameter sizes when they use for instance simply int as data type. If you can't find a 32 bit version of that DLL and failing that haven't got the source code to the DLL to create your own 32 Bit version (which would be likely some serious porting work) then the only option left is to either stay with Windows 3.1 (resp. 16 Bit mode in Windows 9x) or rewrite that part of the application from scratch to do the according IO with modern hardware.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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