if you moved your bin and lib directories from

dmd2\windows\bin
dmd2\windows\lib
dmd2\src

to

dmd\bin
dmd\lib
dmd\src

then you have some extra \..\ 's in your sc.ini file. If that's the problem, try removing those so your sc.ini file looks like this:

[Version]
version=7.51 Build 020

[Environment]
LIB="%@P%\..\lib";\dm\lib
DFLAGS="-I%@P%\..\src\phobos" "-I%@P%\..\src\druntime\import"
LINKCMD=%@P%\link.exe


OR you could get a clean installation of dmd2 and change one line in your bat file from

@SET PATH=%PATH%;\D\dmd\bin

to

@SET PATH=%PATH%;\D\dmd2\windows\bin



bye