Help - Printer driver installs on Vista but not on XP

We are able to get our driver working on Vista with this .INF file, but it
fails on XP when it tries to execute the "class installer".
What are we missing in this .INF file? We are running XP Service Pack 3 and
Vista Business Service Pack 1.

-------- Here is the .INF file (some comments
removed) ---------------------------------------------------------------
[Strings]
String_OEM="Rimage"
Class=%PTR_CLASS%
String_OEM="Rimage Corporation"
String_MODEL="Prism Plus"
String_DISK="Rimage Printer Disk"
PTR_CLASS="Printer"

[Version]
Signature="$Windows NT$"
Class=Printer
ClassGUID={4D36E979-E325-11CE-BFC1-08002BE10318}
Provider=%String_OEM%
CatalogFile=ccdxpvista.cat
DriverVer=03/04/2009,5.3.0.121

[Manufacturer]
%String_OEM%=RIMAGE

[DestinationDirs]
DefaultDestDir=66000
RIMCCD_DRV=66000

[RIMAGE]
%String_MODEL%=RIMCCD.Install_PnP,USBPRINT\Rimage_Prism_Plus5CD7

; for NT
[RIMCCD.Install_PnP]
DriverVer=03/04/2009,5.3.0.121
CopyFiles=RIMCCD_DRV
Include=NTPRINT.INF
DataSection=RIMCCD_DATA
DataFile=ccdxpvista.dll

;[ClassInstall32.NT]
AddReg=printer_class_addreg
DelReg=printer_class_delreg

[printer_class_delreg]
HKLM,"System\CurrentControlSet\Services\Class\Printer","NoUseClass"

[printer_class_addreg]
HKR,,,,%PTR_CLASS%
HKR,,Installer32,,"ntprint.dll,ClassInstall32"
HKR,,Icon,,"-4"
HKR,,NoDisplayClass,,1
HKR,,EnumPropPages32,,"printui.dll,PrinterPropPageProvider"

[RIMCCD_DRV]
ccdxpvista.dll,,0x2008
ccdxpvistaui.dll,,0x2008
ccdxpvistaui.hlp,,0x2008
bcard58.bmp,,0x2008
bcard61.bmp,,0x2008
bcard63.bmp,,0x2008
mini80.bmp,,0x2008
rcard58.bmp,,0x2008
std120.bmp,,0x2008

[RIMCCD_DATA]
DriverFile=ccdxpvista.dll
ConfigFile=ccdxpvistaui.dll

[SourceDisksNames]
1=%String_DISK%,,,

[SourceDisksFiles]
ccdxpvista.dll=1
ccdxpvistaui.dll=1
ccdxpvistaui.hlp=1
bcard58.bmp=1
bcard61.bmp=1
bcard63.bmp=1
mini80.bmp=1
rcard58.bmp=1
std120.bmp=1

---------------- End of .INF
file-------------------------------------------------------------



---------------- Partial Log file
(SetupApi.Log)-------------------------------------------------------------

#C148 Loading coinstaller modules for "Prism Plus".
@ 14:55:20.421 #V166 Device install function: DIF_INSTALLINTERFACES.
@ 14:55:20.421 #T152 Executing class installer.
@ 14:55:20.421 #V153 Completed class installer.
@ 14:55:20.421 #V155 Executing default installer.
@ 14:55:20.421 #V039 Opened INF "C;\PrismDriver\ccdxpvista.inf", PNF not
created (Languge = 0409).
@ 14:55:20.421 #V011 Installing section [RIMCCD.Install_PnP.Interfaces] from
"C;\PrismDriver\ccdxpvista.inf".
@ 14:55:20.421 #I054 Interfaces installed.
@ 14:55:20.421 #V156 Completed default installer.
@ 14:55:20.421 #V166 Device install function: DIF_INSTALLDEVICE.
@ 14:55:20.421 #T152 Executing class installer.
@ 14:55:20.421 #V039 Opened INF "C;\PrismDriver\ccdxpvista.inf", PNF not
created (Languge = 0409).
@ 14:55:20.421 #V005 Opened the PNF file of "C:\WINDOWS\INF\NTPRINT.INF"
(Language = 0409).
@ 14:55:20.453 #V005 Opened the PNF file of "C:\WINDOWS\INF\drvindex.inf"
(Language = 0409).
@ 14:55:20.453 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "ccdxpvista.dll" to "ccdxpvista.dll" with
flags 0x00000020, target directory is
"C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.453 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.453 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "ccdxpvistaui.dll" to "ccdxpvistaui.dll"
with flags 0x00000020, target directory is
"C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.453 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.468 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "ccdxpvistaui.hlp" to "ccdxpvistaui.hlp"
with flags 0x00000020, target directory is
"C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.468 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.484 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "bcard58.bmp" to "bcard58.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.484 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.484 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "bcard61.bmp" to "bcard61.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.500 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.500 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "bcard63.bmp" to "bcard63.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.515 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.515 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "mini80.bmp" to "mini80.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.515 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.531 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "rcard58.bmp" to "rcard58.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.531 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.531 #V094 Queued copy from section [RIMCCD_DRV] in
"C;\PrismDriver\ccdxpvista.inf": "std120.bmp" to "std120.bmp" with flags
0x00000020, target directory is "C:\WINDOWS\System32\spool\DRIVERS\W32X86".
@ 14:55:20.546 #V095 Source in section [sourcedisksfiles] in
"C;\PrismDriver\ccdxpvista.inf"; Media=1 Description="Rimage Printer Disk"
Tag="" Path="".
@ 14:55:20.546 #V005 Opened the PNF file of "C:\WINDOWS\INF\NTPRINT.INF"
(Language = 0409).
@ 14:55:20.546 #V039 Opened INF "C;\PrismDriver\ccdxpvista.inf", PNF not
created (Languge = 0409).
@ 14:55:22.281 #E154 Class installer failed. Error 6: The handle is invalid.
@ 14:55:26.281 #V166 Device install function: DIF_DESTROYPRIVATEDATA.
@ 14:55:26.281 #T152 Executing class installer.
@ 14:55:26.281 #V153 Completed class installer.
@ 14:55:26.281 #V155 Executing default installer.
@ 14:55:26.281 #V156 Completed default installer.

---------------- End of Log file
(SetupApi.Log)-------------------------------------------------------------