Load Library Failures

Question

I just upgraded to a new box - was previously on IIS6,
Windows 2000 Server and CF7 - None of my CFX tags are loading -
CFX_ZIP, Image, etc. I get the Unable to Load Library exception.
Unfortunately - we rolled to a production server and our testing
missed these - it's amazing how much things are used when you skip
right through them!

Answer 1

By default Windows (and hence Java) will look for your DLL in several places - one being the working directory, I think it also looks under the Java installation directory somewhere (that's probably where your C:\Program Files\ entry is coming from), one being the OS directory (C:\WINDOWS\, or C:\WINNT\ or something), and so on.
I think you can set the LIBPATH as well? Or was that Win95/97/Me? I forget.
Anyway, this is all to do with how Windows works - it always looks in all these places before admitting that it doesn't know where a DLL is.
The exception is if you specify the full path to the DLL (which in Java I think you can do in the loadLibrary call), when I think it looks only in that place. But that's not recommended as you might want to change your mind later without recompiling the code.
Anyway, normally it will look in all these places, but it will also look in the place you specify with the -D syntax above, and (importantly) it will look there first. So if you set that and place your DLLs there, you won't get the error.
Dave.