Give the following a try. This was originally posted by Jason Symes:
The Entombed 1.05b installer doesn't install SQL Compact 3.5 Service
Pack 2 correctly, which this version of Entombed needs to function
properly. Install the SQL yourself.
This download is a self-extracting exe made by Microsoft. Extract it
to a folder you can easily find, which will contain three files:
install.txt, SSCERuntime_x86-ENU.msi, and SSCERuntime_x64-ENU.msi
As the install.txt states, if you're running a 32-bit version of
Windows, install SSCERuntime_x86-ENU.msi. If you run a 64-bit version
of Windows, then run SSCERuntime_x86-ENU.msi followed by
If you're not sure whether your Windows is 32-bit or 64-bit, there's a
couple easy ways of finding out. Bring up Windows Explorer to show the
list of files and folders on your computer's c: drive, which is where
most people install Windows. If you have both a program files and a
program files (X86) folder, you have 64-bit Windows. Also check your
Windows folder, if you have a syswow64 subfolder, then you also have a
64-bit version of Windows. Otherwise, if you only have the one program
files folder and no syswow64, you're running 32-bit Windows.
Once you've installed the SQL Compact 3.5 SP2, try running Entombed 1.05b.