1. Copy 'developper' directory (found on the Airpcap CD) at the same level of 'airodump-ng-airpcap' directory
2. Open Visual Studio C++ 6
3. Select 'File' then 'Open Workspace...' and open 'airodump-ng-airpcap.dsw'
4. To compile it, open 'Build' then 'Rebuild All'