序列号过期时间为2099年12月31日，估计用上5-10年都有可能(就看myeclipse的更新速度了)。
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Product ID: E3MP (MyEclipse Professional Subscription)
License version: 9.99
Full Maintenance Included
Subscription expiration date (YYYYMMDD): 20991231
Number of licenses: Unlimited
官方介绍：
The second milestone release (M2) of MyEclipse 5.0 is now available for immediate downolad. Please review the special instructions, release notes and the New and Noteworthy before download. MyEclipse 5.0M2 is compatible with Eclipse 3.2 release candidates. Please be sure to install Eclipse 3.2 prior to installation of MyEclipse 5.0M2.
Notably, the MyEclipse 5.0M2 release integrates the popular Matisse4MyEclipse Swing UI designer directly into MyEclipse, thereby enabling developers to easily build sophisticated graphical user interfaces for their applications. Though Matisse4MyEclipse is now supported on Linux, Mac users will be unable to utilize the Matisse4MyEclipse, MyUML, and MyEclipse Image Editor functions due to the long-standing Eclipse SWT_AWT bug #145890.
MyEclipse Enterprise Workbench 5.0 M2 for Windows 98/2000/XP (7/7/2006)
下载地址：
http://www.myeclipseide.com/Downloads+index-req-getit-lid-59.html