$ZVERSION(1) (ObjectScript) Contents Description Example See Also Returns the operating system type. Synopsis $ZVERSION(1) Argument The only supported argument value is the number 1. Description $ZVERSION(1) returns the current operating system type as an integer code. It returns the following values: 2 for Windows, 3 for UNIX®, and 0 if not known.You can use the isWINDOWS and isUNIX system-supplied macros to return the same information as a boolean value.You can use the %SYSTEM.Version.GetOS()Opens in a new tab to return the same information as a string.You can use the $ZVERSION special variable to return complete InterSystems IRIS version information, including the current operating system type. Example The following example returns the current operating system type: #include %occInclude WRITE "OS type as code: ",$ZVERSION(1),! WRITE "OS type as Boolean: ",! WRITE "Windows? ",$$$isWINDOWS," UNIX? ",$$$isUNIX,! WRITE "OS type as string: ",$SYSTEM.Version.GetOS(),! WRITE "InterSystems IRIS Version: ",$ZVERSION See Also $ZVERSION special variable.