R – Sort a DataGrid by clicking on column headers in the Compact Framework

In Windows Mobile there is the directory:

\application data\volatile

This directory is kept for as long as the device has power.

So what we do is:

1. copy a exe over to this directory, or a sub-directory (I normally use a sub-directory to make sure we don't clash with another application).
2. run the exe from this directory.
3. delete the files you want.
4. (optional) soft-reset.

For compatiblity with all devices you should use the "SHGetSpecialFolderPath" function with CSIDL_APPDATA to get the application data directory and append "\volatile" to it.

OCR is a tricky beast, which is why you probably won't find many free, high-quality, OCR engines. The OCR app on your phone (I'm guessing it's an HTC phone with WorldCard Mobile?) probably has an extremely-well-protected OCR engine or it farms out the work via a webservice.