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National Instruments Corporation
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PPC-2115/TPC-2515 User Manual
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Features in Windows XP
Embedded (TPC-2515)
The TPC-2515 supports the Windows XP Embedded platform (commonly
abbreviated XPe), which is a componentized version of the Windows XP
Professional edition. This appendix explains the version information and
the EWF utility for Windows XP Embedded.
Version Information
You can access the version information by selecting
Start»All Programs»
Utilities
.
The version information states the current XPe runtime information
including hardware platform, version, build number, release date, XPe
QFEs installed in the component database, and Windows XP Pro patches
installed.
EWF
Enhanced Write Filter (EWF) provides an upper filter in the storage device
driver stack that redirects disk write operations to volatile (RAM) or
nonvolatile (disk) storage. EWF protects a volume from write access and
offers the following benefits:
•
Write-protects one or more partitions on your system.
•
Enables read-only media, such as CD-ROM or flash, to boot and run.
•
Prolongs the life span of write-sensitive storage, such as
CompactFlash.
To disable/enable EWF, go to
Start»All Programs»Utilities
and select the
EWF
tab. The default setting is disabled.
When EWF is enabled, the
C:
partition is protected from any disk writing.
In this mode, any changes on the
C:
partition (including modifications to
files or the registry) are redirected to memory. Thus, these changes are
discarded in the next system startup. You can manually enable this mode
after finishing all system changes such as installing your applications or
adjusting system settings.
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