There is an entry named "CreateMailslot does not function in an XP
Embedded SP2 FP2007 image" from last year, but now it's closed and I
can't answer there, so I have opened a new entry to solve this
problem.

Thanks to Adam Wicher from Microsoft Customer Service and Support
because he found the solution.


PROBLEM DESCRIPTION

=====================

When starting an own-written application on an XPe SP2 FP2007 image
customer gets an error message "createmailslot, error 3"

The same application runs fine on an XP Pro SP2 image.



SUMMARY of TROUBLESHOOTING

============================

Add the "MSFS" (Mail Slot File System) component to the XPe
configuration and rebuild the image.



ROOT CAUSE

=====================

The "MSFS" component isn't automatically added to the configuration by
the dependency check. There's a difference on the reverse dependencies
for the "MSFS" component between the XPe SP2 and XPe SP2 FP2007
release. In the XPe SP2 FP2007 release the "Netlogon/NetJoin [R2890]"
reverse dependency has been removed, only "Domain Participation
[R2890]" is left. And customer doesn't have this component included in
his XPe configuration.