DLL missing - URGENT

Question

Hello All,
This is a really urgent question. Please answer as soon as possible.
I bought a DLL from a software vendor. Lets call that DLL as "A". Knowing that i cannot access that DLL directly with Java, I created my own DLL which is acting as a bridge between my java application and DLL A. Lets call this DLL as B.
I tried both these DLLs with a standalone application and it worked fine. So now the scenarion is that there is a class, lets call it C, it calls methods from DLL B and DLL B in turn calls methods from DLL A.
Now I want to use this class C with a Servlet. The problem, as it looks to me, is that when used with the servlet class C finds DLL B, but DLL B is unable to find DLL A.
I am saying this because initially i got the error saying "Cannot find B in java.library.path". I specified the path of DLL B in path variable of Windows (I am using Windows XP) after whcih the next error is something like it cannot find the method. I am copying a portion of exception below:
java.lang.UnsatisfiedLinkError: QALoc_Startup
     at gmm2064.QAS.QASApi.QALoc_Startup(Native Method)
     at gmm2064.QAS.QASApi.EastingNorthingToPostCode(QASApi.java:78)
     at gmm2064.Calculator._generateIntervalReport(Calculator.java:256)
     at gmm2064.Calculator._generateCompleteIntervalReport(Calculator.java:288)
     at gmm2064.Calculator.getReport(Calculator.java:474)
     at gmm2064.ReportGenerationServlet.displayReport(ReportGenerationServlet.java:141)
     at gmm2064.ReportGenerationServlet.doPost(ReportGenerationServlet.java:65)
If anybody has an answer to this question, please reply as soon as possible. I need an answer ideally right now.
Thanks in advance

Answer 1

Hello All,
Thankyou very much for all your replies.... i m grateful.. about the reply saying that why i assumed that my servlet uses the same library path as that of path variable of windows... well, i asked my servlet to print the System.library.path it is using and it printed exactly the same.... then i made some additions to the path variable and the servlet even displayed those....
One more thing.. why i need to register the dll for JNI?
Finally, the problem is solved. Actually i did a silly mistake. After running the standalone compnent i changed the name o class C, just to make it more readable. But the fact whcih i missed out was that changing the class name will change header file's name and also the signatures of methods in header file(as the header file's name is appended in the signature of every method). Thus when i changes the signatures of methods in DLL B, it worked.
Once thankyou very much for all your replies