HotSync是palm操作系统同台式机或笔记本进行同步的软件，被palm公司注册。利用专用的HotSync同步器或者通过无线连接都可以进行这种同步工作。如果台式机palm在同一房间内，还可以用红外线连接方式进行同步。
英文描述：
hotsync.exe is a process which is deals with the Synchronisation of Palm-based PDAs to your computer. Set to start automatically, this application is always resident by default and should not be disabled where regular use of the PocketPC is concerned.
另：hotsync.exe是Palm掌上电脑与电脑PC同步程序。