Solution : https://service.sap.com/sap/support/notes/395229 (SAP Service marketplace login required)
Key words : 
change history date            topic           short description------------------------------------------------------------------------oct/25/01 qrfc        reference, general conditions 70228 overview note 181255 release strategy note 214503 problems, note 438015mar/05/02 qrfc        qrfc versionoct/05/04             reference, p9m            year2000            wp-pi            pdb-add-, car '-xvf /qopt/<volid>/data/<archiv>, car -xvf /<cd_dir>/data/<archiv>, car archive <car archive>, choose 'installation package -> load packages, required support packages pi 2001_1_31i, ehs            ca-gtf-drt
Related Notes : 
       
| 415244 | Release restrictions R/3 Plug-In 2001.1 | 
| 409659 | CRM 3.0 Master Guide | 
| 408638 | Add-On Support Packages and CRTs for PI/PI-A 2001.1 | 
| 353367 | Add-on Support Packages and CRTs for PI/PI-A 2000.2 | 
| 214503 | Release strategy for PI and PI-A add-ons | 
| 181255 | Overview: Notes about R/3 Add-Ons PI and PI-A | 
| 156102 | R/3 plug-in installation for CRM |