Windows 7 Product Key driver signing failed server

Hello,Windows 7 sale,
We have now signed a driver applying verisign authenticode signature and we are
supporting OS variations from XP to WIN-7 for both equally 32, 64 bit.
Driver signing worked very good for below OS:
XP-32,64, Server 2003-32, Vista 32, Win-7 32 & 64.
Not worked:
-----------
Server 2008,Windows 7 Pro, Vista 64.
Single binary is used for all 32 bit OS, making use of WDK-600 xp-32 free build env
Single binary is used for all 64 bit OS,Windows 7 Product Key, utilising WDK-600 Server2003-64 free
build env
Vista-64 Device manager shows Code-39.
I have connected the windbg and loaded driver by same method. It works very good,
because it is in debug mode. I confirmed that, It is signing related problem
in above OS by windbg, Am i correct?
In Vista64, Looked at Eventlogs in Device manager under "Audit Failure",Microsoft Office Professional 2007, It
shows myDriver.sys is having Invalid hash file.
But same binaries worked for Win-7 64.
Development Tools used:
--------------------------
WDK-6000 driver development
WDF-xxx15 coinstaller dll ==> so that, I don't need to restart in lower OS
instead of WDF-xxx19.
Inf2Cat(driver signing) ---WDK7600 Inf2cat is used for signing the catalogue
file, because 7600 supports Win-7.
Below is the only specifying individual OS for catalogue file generation:
-----------------------bat file for generating catalogue file------
stampinf -f pmc55xx.inf -v %VERSION%
pause
cls
pause
INF2CAT /driver:%CURDIR%ForSigningxp-32
/os:XP_X86,Server2003_X86,Vista_X86,Server2008_X86, 7_X86
popd
pause
pushd ForSigningxp-64
Pause
cls
stampinf -f pmc55xx.inf -v %VERSION%
pause
cls
pause
INF2CAT /driver:%CURDIR%ForSigningxp-64
/os:XP_X64,Server2003_X64,Vista_X64,Server2008_X64, Server2008R2_X64,7_X64
---------------------------------------------------------------
We having signed the catalogue file only and proivded the inf,sys,dll other
files.
I am not sure what else I should provide for this case,Office 2007 Product Key, working for most of
the OS, but not for all. Please let me know, if you require more info.
Appreciate your thoughts & inputs.
Thanks,
Kota