What causes VDI client to prompt logon twice?

check for other remote desktop / access software installs such as citrix, novel neo clients...

How to recover mail store (database) from exchange crash:

background: in 2007, can't mount mail store after crash.

1. reboot
2. run ESEUTIL /mh (mailstorepath\mailstore.edb) on all mail stores to determine if any store is in "Dirty Shutdown" state
3. run ESEUTIL /p (mailstorepath\mailstore.edb) on each "Dirty Shutdown" store
4. mount mail stores, if successful, go to end
5. if mount fails, move e00.chk, tmp.edb and catalogdata-xxx folders to other location
6. retry mount

How to set up load balancing for Virtual Machines:

1) make sure the servers to be load balanced are on the same vSwitch
2) install and configure Microsoft NLB (see related articles)