Tools for Troubleshooting Windows Server

http://www.microsoft.com/downloads/details.aspx?FamilyID=115905a2-2507-41db-9195-2e73c8a196a2&DisplayLang=en
Here is the list of tools which explained in the document.

Dependency Walker
Application and Service Tools
-Eventtriggers
-Event Viewer
-Gpresult
-Openfiles
-Performance Logs and Alerts
-Program Compatibility Wizard
-The Resultant Set of Policy
-Runas
-Sc
-Taskkill
-Tasklist
-Task Manager

Operating System and Driver Tools
-Boot Logging
-Device Manager
-Driver Verifier Manager
-Error Reporting Service
-File Signature Verification
-Kernel Debuggers
-Memory Pool Monitor


Online Crash Analysis
Recovery Console
Shutdown Event Tracker
System Configuration Utility (Msconfig.exe)
Systeminfo (systeminfo.exe)
System Information (msinfo32)
Wmic
Windows Update

Disk Tools
-Chkdsk
-Disk Cleanup

Networking Tools
-Arp
-Ipconfig
-Net
-Netdiag
-Netstat
-Network Monitor
-Nslookup
-Pathping
-Portqry
-Telnet Client

Remote Management Tools
-Computer Management
-Emergency Management Services
-Remote Desktop
-Telnet Server