Maybe I'm missing a DLL. Here are the DLLs that came with pgadmin3. comerr32.dll gssapi32.dll iconv.dll k5sprt32.dll krb5_32.dll libeay32.dll libiconv2.dll libintl3.dll libpq.dll libxml2.dll libxslt.dll msvcm80.dll msvcp80.dll msvcr71.dll msvcr80.dll pgaevent.dll ssleay32.dll zlib1.dll