classguid如何与class关联

class 和classguid有关系吗？有的话 是什么关系呢？在哪里有描述呢？
例如 Class= "FSFilter Encryption" 那么是不是classguid中的某些位就是确定的了。
如何实现匹配呢？guidgen只生成guid并没有关联class啊
在论坛搜索了下 看见和这篇帖子的问题一致，但是上面没有解决办法
http://bbs.driverdevelop.com/htm_data/81/0507/95319.html（inf文件中的Class和ClassGUID如何一致啊？--tianzhhy）
还有就是下面的
http://bbs.driverdevelop.com/read.php?tid-73338-keyword-classguid.html（令人头疼的GUID）
http://bbs.driverdevelop.com/read.php?tid-75929-keyword-classguid.html（GUID for the interface device class ??）
希望了解的人帮忙一下 谢谢

FSFilter Activity Monitor
Class = ActivityMonitor
ClassGuid = {b86dff51-a31e-4bac-b3cf-e8cfe75c9fc2}
FSFilter Undelete
Class = Undelete
ClassGuid = {fe8f1572-c67a-48c0-bbac-0b5c6d66cafb}
FSFilter Anti-Virus
Class = AntiVirus
ClassGuid = {b1d1a169-c54f-4379-81db-bee7d88d7454}
FSFilter Replication
Class = Replication
ClassGuid = {48d3ebc4-4cf8-48ff-b869-9c68ad42eb9f}
FSFilter Continuous Backup
Class = ContinuousBackup
ClassGuid = {71aa14f8-6fad-4622-ad77-92bb9d7e6947}
FSFilter Content Screener
Class = ContentScreener
ClassGuid = {3e3f0674-c83c-4558-bb26-9820e1eba5c5}
FSFilter Quota Management
Class = QuotaManagement
ClassGuid = {8503c911-a6c7-4919-8f79-5028f5866b0c}
FSFilter Cluster File System
Class = CFSMetaDataServer
ClassGuid = {cdcf0939-b75b-4630-bf76-80f7ba655884}
FSFilter HSM
Class = HSM
ClassGuid = {d546500a-2aeb-45f6-9482-f4b1799c3177}
FSFilter Compression
Class = Compression
ClassGuid = {f3586baf-b5aa-49b5-8d6c-0569284c639f}
FSFilter Encryption
Class = Encryption
ClassGuid = {a0a701c0-a511-42ff-aa6c-06dc0395576f}
FSFilter Physical Quota Management
Class = PhysicalQuotaManagement
ClassGuid = {6a0a8e78-bba6-4fc4-a709-1e33cd09d67e}
FSFilter Open File
Class = OpenFileBackup
ClassGuid = {f8ecafa6-66d1-41a5-899b-66585d7216b7}
FSFilter Security Enhancer
Class = SecurityEnhancer
ClassGuid = {d02bc3da-0c8e-4945-9bd5-f1883c226c8c}
FSFilter Copy Protection
Class = CopyProtection
ClassGuid = {89786ff1-9c12-402f-9c9e-17753c7f4375}
FSFilter System
Class = FSFilterSystem
ClassGuid = {5d1b9aaa-01e2-46af-849f-272b3f324c46}
FSFilter Infrastructure
Class = Infrastructure
ClassGuid = {e55fa6f9-128c-4d04-abab-630c74b1453a}
问题解决