createdb - missing pq.dll after compile/install?

All,

I have a new minor problem.  When I compile/install PostgreSQL 7.4 from scratch, when run one of the scripts such as createdb.exe, I get a windows error message that the "pq.dll" could not be found, and that I should try reinstalling.  For fun, I tried reinstalling, and I still get the error.  If I copy the pq.dll (which really has been installed in /usr/lib) to the windows/system32 folder, it works.  I deleted the DLL, then tried installing the precompiled PostgreSQL from my cygwin download package, and it worked without asking for the pq.dll – I found that this time the dll had also been installed in /usr/bin.  Is this something I should just know to do after I compile/install, or is it something I'm missing in the source code or my configuration settings?

Thanks,

Mike