[XPERIA X1 ROM Development] ShaDrac:
Hi jackleung,

Extendir works perfectly on WM 6.5! :)

If what you've posted above was your full boot.rgu, then replace it with this (I've optimized some other things to :D) :

[HKEY_LOCAL_MACHINE\System\StorageManager\Filters\fsreplxfilt]
"ReplStoreCacheSize"=dword:4000
"NumDirsToExclude"=dword:d
"DirsToExclude"=multi_sz: "\\mxip_initdb.vol",
"\\mxip_system.vol",
"\\mxip_notify.vol",
"\\mxip_lang.vol",
"\\cemail.vol",
"\\pim.vol",
"\\Documents and Settings\\",
"\\Program Files\\",
"\\Windows\\",
"\\Application Data\\",
"\\ConnMgr\\",
"\\mxip_swmgmt.vol",
"\\Temp\\"
[HKEY_LOCAL_MACHINE\init\BootVars]
"RequireCertMod"=dword:0
[HKEY_LOCAL_MACHINE\init\BootVars]
"Flags"=dword:1
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power]
"ScreenPowerOff"=dword:3c
[HKEY_LOCAL_MACHINE\MUI]
"Enable"=dword:1
[HKEY_LOCAL_MACHINE\MUI]
"SysLang"=dword:409
[HKEY_CURRENT_USER\MUI]
"CurLang"=dword:409
[HKEY_LOCAL_MACHINE\init\BootVars]
"Flags"=dword:5
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\FATFS\Filters\fsreplxfilt]
"Dll"="fsreplxfilt.dll"
"Order"=dword:11 ; must be loaded before other filters
[HKEY_CURRENT_USER\Software\Microsoft\Windows]
"DbPath"="\\mxip_initdb.vol"
"LangDbPath" = "\\mxip_lang.vol"
[HKEY_LOCAL_MACHINE\System\StorageManager]
"PNPUnloadDelay"=dword:5dc
[HKEY_LOCAL_MACHINE\Drivers\BlockDevice\FLASHDRV]
"Flags"=dword:00011000
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\FLASHDRV]
"Prefix"="DSK"
"Dll"="FLASHDRV.dll"
"Index"=dword:1
"Order"=dword:10
"BMTimeout"=dword:1D4C0
"Profile"="FLASHDRV"
"IClass"="{A4E7EDDA-E575-4252-9D6B-4195D48BB865}"
[HKEY_LOCAL_MACHINE\System\StorageManager\AutoLoad\FLASHDRV]
"DriverPath"="Drivers\\BuiltIn\\FLASHDRV"
"LoadFlags"=dword:1
"Order"=dword:0
"MountAsRoot"=dword:1
"MountAsBootable"=dword:1
"BootPhase"=dword:0
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV]
"DefaultFileSystem"="IMGFS"
"PartitionDriver"="mspart.dll"
"Name"="Microsoft Flash Disk"
"Folder"="imgfs"
"MountFlags"=dword:11
"BootPhase"=dword:0
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\IMGFS]
"MountFlags"=dword:11
"XIP"=dword:1
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\FLASHDRV\FATFS]
"Flags"=dword:00600014
"FormatTFAT"=dword:1
"CheckForFormat"=dword:1
"MountAsBootable"=dword:1
"MountAsRoot"=dword:1
"EnableWriteBack"=dword:1
"DataCacheSize"=dword:00000800 ;2048 sectors(2048*2048=4MB)
"FatCacheSize"=dword:00000100 ;256 sectors(256*2048=512KB)
[HKEY_LOCAL_MACHINE\System\StorageManager\Profiles\MSFlash\Part00]
"CheckForFormat"=dword:1
[HKEY_LOCAL_MACHINE\System\StorageManager\FATFS\filters\HTCFSFILTER]
"Dll"="htcfsfilter.dll"
"Order"=dword:10
[HKEY_LOCAL_MACHINE\System\StorageManager\IMGFS\filters\HTCFSFILTER]
"Dll"="htcfsfilter.dll"
"Order"=dword:10
[HKEY_LOCAL_MACHINE\System\Events]
"SYSTEM/NLedAPIsReady"="Notification LED APIs"
[HKEY_LOCAL_MACHINE\System\StorageManager\filters\Extendir]
"Order"=dword:0
[HKEY_LOCAL_MACHINE\System\StorageManager\FATFS\filters\Extendir]
"Dll"="Extendir.dll"
"Order"=dword:0

But I've noticed the HTCFSFILTER in your boot.rgu??? :confused::confused::confused:

The X1 isn't an HTC device, so are you sure this boot.rgu belongs to your X1? Maybe that why it wasn't working, but if you post a new boot.rgu, I will optimize it for you. :)

Enjoy,

ShaDrac