Java Can 39;t Load Ia 32-bit .dll On A Amd 64-bit Platform

[Camie Fons]

SoI have Eclipse 3.7.1, running on a 64-bit Windows 7 OS. For the first time in a while yesterday I tried writing a program and kept getting the above error. I refined my program down to a bare minimum beginners tutorial and was still getting the error. My program now is a simple readInt()s and add them together.

Take a look at the DosCommandLine.getCommandLine() method in Program.java for clues. If you absolutely need functionality provided by that library then you could download the 32 bit JRE and try to run it with it.

The issue is because you are using a .dll file for a 32bit version, while your JDK and platform are 64bit.Go to your path "C:\Users\scarr" and you will find 2 subfolders, i386, and x64. Copy the GCMDLN.DLL from the x64 or the current .dll file, to override it.I think the issue will be solved.

we are running IDM 8.0 with latest SPs. Now, trying to connect an ABAP system runs into connection error "Parameter message server host ('jco.client.mshost') is missing" although all parameters are correctly set. So after some investigation and checking some SAP notes I tried to check the installed JCo version (system was installed & updated using SWPM/SUM). The console showed Java VM version and JCo3 API. But library could not be found. Instead there was an error "Can't load AMD 64-bit .dll on a IA 32-bit platform".

Ok... so, following note 2313331 I replaced the JCo3 files with the 32 bit version, re-started everything and checked again the JCo console. Now, it's fine - no errors, library was loaded, initialization successfully.

Great, I thought, problem solved, I thought... Nope.. the connection test to ABAP repository still failed. I increased the trace level and checked the DSE.log file. Now, here comes the funny part... it says "Can't load IA 32-bit .dll on a AMD 64-bit platform" (>_

Although quite old, maybe someone else still gets here

"Parameter message server host ('jco.client.mshost') is missing" means you specified jco.client.r3name but not jco.client.mshost, which is mandatory in this case. If you would like to do a direct application server logon instead of a load balanced logon, then simply drop jco.client.r3name and specify jco.client.ashost and jco.client.sysnr instead. jco.client.r3name is not needed for direct application server logons.

Of course, it is applicable. My answer explains what error message "Parameter message server host ('jco.client.mshost') is missing" means and how it can be solved - the initial issue of Richard. This answer is just not saying anything about the subsequent unneccessarily performed installation errors due to the wrong library with wrong bit-widht being used. In general, an answer does not need to cover all details of a question, especially not if it is a late answer for a 2-year old question.

In general, native libraries loaded by a Java VM must match the JVM's own word size, i.e. a 64 bit JVM will only ever load 64 bit native libraries successfully. Assuming you're using SAPJVM 8 for SAP IDM 8.0, it seems unlikely that the 32 bit version of the JCO DLL is the correct one, because -at least on the public download location at - SAPJVM 8 is only available for x64. Hence, my guess is that this can only work with 64bit JCO.

Maybe the misleading results you received from the console in your initial analysis have been caused by a different environment of your own user (which may have a different path and other environment variables), compared to the OS user that is executing the SAP IDM runtime?

Could it be that the real root cause is really more related to the connection parameters -which implicitly combine with data read from the SAP IDM runtime matchine's content of /etc/services- , and that there was initially no problem at all with the native library?

This problem is popular when you work on 64-bit JVM and try to use 32-bit libs.

I remember when I had this problem with LeJOS on some project.

To be honest its not a hard-to-solve problem but still, there are times when you are exhausted by the whole day, you add some 32-bit lib on your 64-bit JVM getting in effect "Can't load IA 32-bit .dll on a AMD 64-bit" and have no clue what the friendly-word.

Anyway nice art.

If you have time could you make one about why use 64-bit JVM on 64-bit machines, it would be great. But it would be a long one I guess.

After pressing "Login" in the launcher, the new window pops up and remains white. There is no error message and I have to manually close Minecraft. This happens on any modpack as well as the vanilla.

Any and all help is appreciated as I can not figure out this on my own. Google has not been of much help either and all suggestions seem to point to recompiling, but I don't know how that applies to my case. Thanks!

How many versions of Java do you have? Check your Control Panel. That error has always been associated with trying to run 32-bit Java on a 64-bit system. Your Java install in your Control Panel should specifically say 64-bit. If it doesn't, you have the wrong version.

As in the Java control panel? There does not seem to be anything denoting any form of bit, however the only install of Java shown in that panel is in the 64-bit program files folder. As I said, I have even tried to re-install java with no luck.

also, I did a little digging and I see what you mean about having a hard time googling the problem. from what I can gather, this issue is caused most often by the 64-bit libraries being inaccessible for some reason. either the JVM has no read permissions to them or it can't find them so it defaults to 32-bit and dies.

the other thing you could also try is using command line arguments to force java to look in the right place for the LWJGL libraries. do this by using the -Djava.library.path="path/to/lwjgl/64bit/dlls" command line parameter. in order to make that stick though you'll need to use a second little trick to prevent the launcher from restarting itself with default parameters. make a batch file in your .techniclauncher directory. in the batch file, place the following lines:

As far as I know, JVM should have read permissions on the .dlls. I can't think of any reasons as to why it wouldn't. My Windows and Java installs are both standard and I have not been playing with permissions settings. From the error though, it seems right that the lwjgl.dll panics because it can't handle 64 bit instructions, but even with the switch you supplied it won't load the 64 bit version.

The LWJGL website has a tutorial on how to test if LWJGL is working properly. If you try out that test app with a few debug switches, then you can find a lot of useful data. My issue was an inpage error. They come from various sources, but most commonly from storage or RAM faults. After running a checkdisk scan on the disk, it turns out there was a few faulty sectors and the checkdisk actually made it worse. I found a spare disk and everything is working fine now, but I am going to need a new SSD.

I need to run a talend job with java 32 bit, because of loading a native code. I change the java version under preference/java/installed jre, but if I run the job under talend studio, it starts the 64 bit Version.

when you Install talend you will see two talend versions in the installed folder. one with x86 which is 32 bit version of talend and another exe file with x86_64.exe prefix. Try starting x86 version of the studio and run the job and see if anything helps. I have attached images of both versions of the talend which I mentioned.

Could you please type java -version in cmd to see if you are on 64 bit JDK or 32 bit. It seems that you are still using jdk 64 bit. Make sure that you have installed 32 bit JDK in your machine so that you can use 32 bit platform to read 32-bit .dll. not 64 bit.

In my case, I only have TOS_DI-win-x86_64.exe as an option. Does this mean that Talend Open Studio can only run on a 64 bit machine? I'm chained to a 32-bit virtual machine and would like to use Talend, but do not know how to make it run. Thanks!

hi

I want to load user32.dll in C:\Windows\SysWOW64 path that pasted in D drive and I am in 64bit version of java but why I geting this error?

java.lang.UnsatisfiedLinkError: D:\user32.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform

Alright I've been struggling with this for a while, and I know there's a lot of answer out there saying that you need to use the source code but I don't have that. What I do have is the dll, a .lib file, and the .h file. I was wondering if there was any way to use these to recompile the dll from 32 bit to 64 bit? I also see that the header file has this

No, there is no 32-bit 64-bit magic in there. And it is preprocessor statements, so what the compiler does before it actually compiles the source code into the final binary object. It has no influence whatsoever on how you can call the resulting DLL.

This particular preprocessor magic defines some label depending on if the source code is compiled for Windows or Unix. And the _WIN32 define is true for both 32-bit and 64-bit compilation but that is totally irrelevant for your problem.

If you have a 32-bit DLL you need a 32-bit application to call it. Unless you are so proficient in assembly programming that you could rewrite parts of Windows in it, there is simply no way around that! Niente, Non, Nothing!

2) Use 32-bit LabVIEW to interface to that DLL and then use some IAC (Interapplication Communication) such as Network Streams, TCP/IP connections or similar to talk with that 32-bit application from your main 64-bit application

3) Get someone with the source code for that DLL to recompile it for 64-bit. Note that this may not be as simple as throw the Compile switch and be done. The code may make many assumptions about being executed in 32-bit that will not compile or crash at runtime if compiled for 64-bit without careful code review.

Windows is 64 bit, but most apps are 32. I suppose, 32 bit applications usually call 32 bit DLLs of which the system DLL must be in Windows as well. So Windows has supposedly many DLLs in 32 bit and 64 bit. Does that mean the 64 bit apps would never call 32 bit or even 16 bit DLLs? Why not?

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