To extract files with original names from a Windows Mobile CAB file and view the INF file which was used to create the CAB file, use MSCEInf.
MSCEInf supports command line parameters, for example:
MSCEInf CabFile1.CAB extract “c:temp”
will extract the CAB file contents to folder c:temp
To extract the CAB file from an ActiveSync setup file (.EXE), you can use a tool such as Uniextract.
This will work if the .EXE was compressed using a common algorithm. If it does not work, try to install the app by running the .EXE file. For most applications, the CAB file will be available in a sub-directory in C:Program FilesMicrosoft ActiveSync. Or on the device, it is available in WindowsAppMgrInstall
If a CAB file fails to install on your devices remember a detailed XML log of the installation process can be found on the device under Application DataVolatilesetup.log
Windows Mobile CAB file is loaded using WindowsWCELoad.exe. If a CAB file has a CE setup DLL, the DLL is handled by tmarshaller.exe. For more information, see this.