Most admin tools in Vista, Windows Server 2003, Windows Server 2008 are MMC consoles you can access from the Start menu. But you can also open these console from the command line if you know their .msc filenames. This can be especially useful if you log on to your admin workstation using a limited privilege account and use Runas to perform admin tasks. For reference, here's a list of admin tools with their associated .msc files. You can print this out and tape it on the wall beside your workstation until you memorize the ones you use most commonly.
AD Domains and Trusts
domain.msc
Active Directory Management
admgmt.msc
AD Sites and Serrvices
dssite.msc
AD Users and COmputers
dsa.msc
ADSI Edit
adsiedit.msc
Authorization manager
azman.msc
Certification Authority Management
certsrv.msc
Certificate Templates
certtmpl.msc
Cluster Administrator
cluadmin.exe
Computer Management
compmgmt.msc
Component Services
comexp.msc
Configure Your Server
cys.exe
Device Manager
devmgmt.msc
DHCP Managment
dhcpmgmt.msc
Disk Defragmenter
dfrg.msc
Disk Manager
diskmgmt.msc
Distributed File System
dfsgui.msc
DNS Managment
dnsmgmt.msc
Event Viewer
eventvwr.msc
Indexing Service Management
ciadv.msc
IP Address Manage
ipaddrmgmt.msc
Licensing Manager
llsmgr.exe
Local Certificates Management
certmgr.msc
Local Group Policy Editor
gpedit.msc
Local Security Settings Manager
secpol.msc
Local Users and Groups Manager
lusrmgr.msc
Network Load balancing
nlbmgr.exe
Performance Montior
perfmon.msc
PKI Viewer
pkiview.msc
Public Key Managment
pkmgmt.msc
QoS Control Management
acssnap.msc
Remote Desktops
tsmmc.msc
Remote Storage Administration
rsadmin.msc
Removable Storage
ntmsmgr.msc
Removalbe Storage Operator Requests
ntmsoprq.msc
Routing and Remote Access Manager
rrasmgmt.msc
Resultant Set of Policy
rsop.msc
Schema management
schmmgmt.msc
Services Management
services.msc
Shared Folders
fsmgmt.msc
SID Security Migration
sidwalk.msc
Telephony Management
tapimgmt.msc
Terminal Server Configuration
tscc.msc
Terminal Server Licensing
licmgr.exe
Terminal Server Manager
tsadmin.exe
UDDI Services Managment
uddi.msc
Windows Mangement Instumentation
wmimgmt.msc
WINS Server manager
winsmgmt.msc