I can generate a libary file sucessfully with Keil C51 V8.02, but I can generate a libary file with V9.05. Could you tell me what difference between these two versions. Thanks.
Why not - what is preventing you?
Do you receive any error messages?
Have you checked the documentation for the two versions - particularly for the commands/options that you are using?
"Could you tell me what difference between these two versions"
Have you looked at the Release Notes?