Setup 1. proj446_win32_bin.zip First, install the precompiled binaries. Using WinZip, PowerArchiver, or InfoZip's unzip, unpack the ZIP archive into the C:\ drive, retaining folders. The result should be a directory structure like: C:\proj\ C:\proj\bin\ C:\proj\bin\cs2cs.exe C:\proj\bin\geod.exe C:\proj\bin\nad2nad.exe C:\proj\bin\proj.dll C:\proj\bin\proj.exe C:\proj\nad\ C:\proj\nad\alaska.lla C:\proj\nad\conus.lla . . . C:\proj\nad\world C:\proj\README.TXT 1. PATH=%PATH%;C:\proj\bin Now, modify the PATH environment variable. Right-click on "My Computer" and select "Properties" from the context menu. In the "System Properties" window, select the "Advanced" tab, then click on the "Environment Variables" button. You may either modify the PATH variable for the system as a whole or just your user by adding ;C:\proj\bin to the end. Select the "Edit..." button to edit an existing variable. If you'd like to just modify your user environment and you don't have a PATH variable, create it with the "New..." button. 2. PROJ_LIB=C:\proj\nad In a similar fashion to setting the PATH variable, create the new environment variable PROJ_LIB and set its value to C:\proj\nad. Click "Ok" on the "Environment Variables" window and then "Ok" on the "System Properties" window to finish basic PROJ.4 installation. 2. nad2bin.exe In order to perform datum transformations using the more accurate NADCON method, we must convert the "conus.lla" ASCII file to a binary representation with the nad2bin.exe program. Launch an MS-DOS (Command.com) window and change directory to C:\proj\nad. Then run the program as follows: C:\proj\nad>nad2bin conus < conus.lla 3. proj_api.zip Now unpack the proj_api.zip file. A good location would be C:\proj\proj_api\ but anywhere will do. Then copy the file proj_api.dll to C:\proj\bin\. Now we are ready to use the wrapper library in our VB/VBA projects. See the example.mdb database for a demo and to test your installation.