Error: The Side-by-Side configuration information in "BLAH.EXE" contains errors

This is the error Dependency Walker gives me on an executable that I am building with VC++ 2005 Express Edition. When trying to run the .exe, I get:

This application has failed to start because the application configuration
is incorrect. Reinstalling the application may fix this problem.

(I am new to the manifest/SxS/etc. way of doing things post VC++ 2003.)

EDIT: I am running on the same machine I am building the .exe with. In Event Viewer, I have the unhelpful:

Faulting application blah.exe, version 0.0.0.0, faulting module blah.exe,
version 0.0.0.0, fault address 0x004239b0.