MSDOS and clones and emulators.
There is no Clipper VO; CA Visual Objects is an object oriented Clipper super-set that runs under Windows and creates Windows executables.
if flock()=.T. then
Clipper is a technique. This techniques used for data format converting into other format, because no one can hack or misue it. So convert the text into other format for transformation on the internet.
Clipper uses binary floating point format for Real Numbers which could result in precision related errors.
Most tasks can be accomplished with one or two lines of code. For more complex tasks (such as processing login scripts), we provide source code "snippets" which you can include in your application.
In a business where companies and products seemingly come and go every month, Communication Horizons has been a fixture on the PC software landscape since 1986. Their flagship product, NetLib, was introduced in 1986, and has won either "best of" or "honorable mention" in the DataBased Advisor Readers Choice Awards every year since 1989.
RaSQL, introduced in 1989, has almost single-handedly raised the awareness in the "Xbase" community to the benefits of Btrieve. Between the two, Communication Horizons' products have been used by tens of thousands of developers worldwide.
NetLib supports Clipper 87 through 5.3.
NetLib 6.5 will allow you to use FiveWin or Clip4Win to create Windows 3.1 compatible products. These programs can run unchanged under Windows 95.
NetLib's SDE was designed to be a moderately secure scheme to keep unauthorized users and programmers from accessing data. It was not designed to foil the skilled, dedicated hacker. If you have data of an extremely sensitive nature that you believe certain people are actively trying to compromise, you should look at an extremely secure scheme such as "DES" or "PGP" encryption.