1. Bring up a Command Prompt window.
2. Change to (cd) the directory in which the package is installed, 
3. Locate the VB compiler, vbc.exe, probably in 
   C:\WINDOWS\Microsoft.NET\Framework64\v#.# where v#.# as v3.5 or from any 
   latest .NET Framework version. 
   Add the directory to PATH environment variable.
4. Run tocompilevb.bat to compile the distribute VB sample source programs: 
   Qst2vb.vb, Qst2vb2.vb, Qst2Epoch. Qst2Epoch16.vb and Qst2TT2000.vb. Once
   compiled, All these created executables (.exe) are 64-bit applications.
5. Run totestvb.bat to test the compiled programs from the Command Prompt.
   A CDF file, TEST.cdf, will be created by either Qstvb.exe or Qstvb2.exe. 
   If an error is encountered, due to a System.DllNotFoundException exception, 
   repeat step 1 and 2, and rerun totestvb.bat again. 
6. If the VB applications to be developed locate in a different directory,
   make sure the following compiler options are specified to vbc.exe while
   compiling the applicaions:
     /lib:%CsharpCDFDir%
     /unsafe
     /platform:x64 (for Windows running 64-bit OS)
   Environment variable CsharpCDFDir, the C#-CDF installation directory, 
   should be defined when the package is installed. Refer to tocompile.bat
   for example.
   To run the applications, The distributed CDF assemblies need to be placed 
   in the Global Assembly Cache (GAC). Locate gacutil.exe, a .NET Global 
   Assembly Cache utility, probably in 
   C:\Program Files\Microsoft sdks\Windows\v#.#/bin where v#.# as v6.0A or
   from any latest Microsoft Development Kits. Add the directory to PATH 
   environment variable. Run togac.bat to install the latest CDF assemblies 
   to GAC. 

Contact gsfc-cdf-support@lists.nasa.gov for any inquiry/suggestion.
 

 
