... jedenfalls ein Teil davon:

1. Betriebssysteme
- Windows 9x/NT/2000/XP/Vista
- Linux
- Mac OS

2. Serversysteme
- Windows NT/2000/2003
- Linux
- AIX

3. Hardware Erfahrungen
- Compaq/HP
- IBM
- MS Cluster
- Dell
- Watchguard

4. Server Applications
- MS Exchange 5.5 - 2003
- MS ISA Server
- MS Internet Information Server (IIS)
- Apache Web Server
- Lotus Notes 4.6/5.0/6.5
- Veritas Backup Exec
- ArcServe
- E-Trust Antivirus
- Symantec Enterprise Produkte:
     - Antivirus (Server/Client/Exchange/Notes)
     - E-Mail Gateway
     - Ghost
- SMS Server
- VPN

5. Datenbanksysteme
- MS SQL Server
- MS Access
- MySQL
- DB2
- Database 602
- Informix
- Oracle
- Progress

6. Client Applications
- SAP GUI 3.6 - 6.5
- Lotus Notes 3.6 - 6.5
- MS Office Professional, 9x - 2007
- MS Project
- MS Visio
- Filemaker Pro
- Adobe Pagemaker
- Adobe Photoshop
- Quark X-Press

7. Client Application Trainings
- MS Office, 9x - 2007
- MS Project
- MS Visio
- Adobe Pagemaker
- Adobe Photoshop
- Quark X-Press
- Lotus Notes

8. Programmiersprachen
- C, C++, C#
- Pascal
- VBasic
- Cobol
- PL1
- Java (JDK, J2SE, J2EE, Swing/AWT, RMI, JDBC, Applets, Aglets, JSP/Servlets, Beans, EJB, SSL, Threads, Sockets, JNI, i18n, JAXP, JAXM, JAXB, JAXR, ...)
- JavaScript, SQL, PHP, XML, XSL, X/HTML, Perl, CGI, C.