list and kill open session
To list all sessions on a server: qwinsta /SERVER:servername
To end a session: rwinsta {sessionname sessionid} /SERVER:servername

more info: http://support.microsoft.com/?kbid=243202

windows uptime
uptime.exe tool: http://support.microsoft.com/kb/232243

Delete profiles on Windows Terminal Server
Download this:
http://www.microsoft.com/downloads/details.aspx?familyid=901a9b95-6063-4462-8150-360394e98e1e&displaylang=en
How to use it:
http://support.microsoft.com/kb/315411

But, Delprof.exe does not delete the Windows Installer data when you remotely delete a user profile. Solve: http://support.microsoft.com/kb/883250 and if show a error "Cannot delete NTUSER: It is being used by another person or program." then install: "User Profile Hive Cleanup Service " from http://www.microsoft.com/downloads/details.aspx?FamilyID=1b286e6d-8912-4e18-b570-42470e2f3582&DisplayLang=en

Open-source for windows
A simple list of the best free and open-source software for windows
http://www.opensourcewindows.org/

Capture your Screen
http://www.thesilver.net/ free software

Migrate vm problems on ESX 3

check /var and free space on Hosts

http://searchservervirtualization.techtarget.com/tip/0,289483,sid94_gci1242190,00.html

http://blog.baeke.info/blog/_archives/2006/12/6/2553780.html
http://thelifecode.blogspot.com/2006/09/enabling-vmotion.html

show hidden network adapter
Start>Run>cmd
Type: set devmgr_show_nonpresent_devices=1, ENTER
Type: Start DEVMGMT.MSC, ENTER
View>Show Hidden Devices.

How do you unregister a .dll file on a server?
cmd
regsvr32 /u thedllfile.dll

more info:
http://support.microsoft.com/kb/249873/en-us

Stopping Processes with WMI
http://www.computerperformance.co.uk/vbscript/wmi_process_stop.htm

How Can I List All the User Profiles on a Computer?
http://www.microsoft.com/technet/scriptcenter/resources/qanda/jun05/hey0603.mspx