I've written a batch script called mod2wim (partly inspired by the script in this
thread) which automates the process of retrieving/patching/merging/mounting mod/sny files from the recovery partition or recovery discs. Just extract the zip file in the system root, run c:\mod2wim\mod2wim.bat as admin (right-click->Run as admin), pick your task and let the script do the job...
DL link:
http://rapidshare.com/files/180131992/mod2wim.zip
Edit 1: New version, supports setting of source drive (useful for recovery discs), if drive doesn't exist the recovery partition is temporarily mounted to it.
Edit 2: Minor bugfix, realized that the lines checking whether the drive was already mounted were a mess.
Edit 3: Added the x64 version of imagex to mod2wim.zip for use when deploying Sony.wim with a Vista x64 installation DVD, no changes to the script.
Edit 4: Removed obsolete files accidentally included on previous change, also improved script documentation.
Word of caution: The script uses Diskpart to temporarily unhide the recovery partition. If you use the script to mount a Sony recovery partition on a computer that doesn't have one, that could possibly affect the Windows partition instead (most likely it won't though, since the Windows partition is locked and in use) and require manual correction of the partition ID tag before Windows can be booted again...