1. What is Comet? Here are the various programs that make up the Comet System. This diagram progresses both through time. And from simple to complex.

2. Desktop CosH Local Storage This is the original Comet. All runtime, printer and file system code resided in CosH. DOS

3. Desktop CosH Local Storage CosW CosC CosW and CosC supply the interface to the Windows API for Comet applications. Windows

4. Desktop CosH Local Storage CosW CosC Cosh is the only piece of code written in 16 bit assembly. All others are written in VB, 32 bit C or C++. CosP CoshIPC 16 – 32 bit

5. Desktop CosH Local Storage CosW CosC CFam CFileServe Cfam and CFileServe provide file access in a more flexible way. Windows File Access

6. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CometLib interacts with Applications outside of Comet and provides them access to Comet files through Cfam. CometLib

7. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib Let’s make more room.

8. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CosW CometAnywhere uses TCP/IP to communicate between a remote CosW and CosC on the host. CometAnywhereThe Internet

9. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CosW All Comet Workstations communicate to the File Server via Cfam to CfamNetServe. File Server Workstation Server Storage CFileServeCfamNetServe Other Workstations Cfam Server -- Workstation The Internet

10. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CosW Using Windows file access, Comet.exe copies all system files from the server to the user’s temp folder and then launches CosW. File Server Workstation Server Storage CFileServeCfamNetServe Other Workstations Cfam Comet.exe The Internet

11. Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CosW Comet32 is meant to replace the runtime portion of CosH. Where Does it fit in? File Server Workstation Server Storage CFileServeCfamNetServe Other Workstations Cfam Comet32 Comet.exe Comet32 The Internet

12. CometLib ClibNetServe Cosp Desktop CosH Local Storage CosW CosC CFam CFileServe External COM Compliant Application CometLib CosW File Server Workstation Server Storage CFileServeCfamNetServe Other Workstations Cfam This is Comet Comet.exe Comet32 Coshipc Cosp CSecSrv Security Server The Internet 11751 11755 11750 11754 Windows calls

13. The End Left out…. –Serial Gateway –ODBC –Email printer –XAP –Utilities –…. Questions?