Be sure to also copy libmySQL.dll to the appropriate location (like you do with every other DLL in the dlls/ folder).

Thanks for the quick suggestion!

That wasn't quite the problem, but close enough to give me a clue for what to look for. After I verified the DLL was in fact being loaded, I was able to determine that the DLL being loaded wasn't the correct version - I had a DLL from a previous version of PHP lingering in my windows/system32 folder that was getting found in the search path before the current version.

Once again I am reminded of why I should never copy DLLs to the windows directory and instead just update global path search variables so I don't have old versions lurking about like this.

Thanks again,
Eric Cosky

Could you please explain the solution a little bit more?
I cannot figure out it, where should the libmySQL.dll be placed?

Yes, please explain further, i am having this same problem which is not good because now i cant connect to my SQL databases which i need for registration procedures and such.  Im a bit confused and so far this is the closest ive seen to an actuall fix.

Basically this was the problem: I had two copies of the DLL on my system: The one I should have been using, and one old & unusable one sitting in my c:\windows\system32 folder. Everything seemed OK because it was able to sort of work, but in fact it was using the wrong DLL. The fix was to eliminate the duplicate DLL, and adjust my system path (ie My Computer->Properties->Advanced->Environment Variables->System Variables where there is a Path Entry; simply add ";c:\mysql" or wherever you keep your DLL to the end of the existing path). Adjusting the system path let me avoid copying the DLL into the system folder which is what I did the first time and - since I had forgotten about it - was ultimately responsible for the problem in the first place - that is, having an obsolete DLL being used instead of the current one simply because it was in the system folder. It's hard to keep track of versions of stuff when they get copied into the system folder; you're much better off to just adjust paths so that when you update whatever apps you have you don't have to muck about inside c:\windows\* looking for & removing obsolete stuff.

cheers,
Eric Cosky