Classical visualbasic language function implementations..zip

NOTE: There is a bug in **roxygen2** package for build R package, when you build R package with **roxygen2** package, **roxygen2** will overrides the ``NAMESPACE`` file by replace with a line of code comment: ```R # Generated by roxygen2: do not edit by hand ``` This will cause the R package can not export function, and cause the problem in R, like: ``` Error: object 'xxx' not found ``` So, when build the ``*.rd`` document, please use script file [./build.bat](./build.bat) for build the R package.