BES: How to separate company's and personal mailboxes on Blackberry.

By default, all mails for BES mailbox go to Messages folder. If you have an additional mailbox (like gmail or something else), you probably will be confused, because all messages from this additional mailbox go to Messages folder too. To separate it (create another separate folder for BES mailbox), we have to update a database and resend service books to a device.

BBDBUpdate.exe -n localhost\BLACKBERRY -db BESMgmt -input EnableBESOnlyMessageApplication.sql

Create tar.gz on Windows box

I've tried to use GnuWin package, but got an error while packing a file with very long filename, so I have to find something else. Fortunately, I found that free 7Zip can do that without errors.

You need to download a free command line version (see URL in the header).
7za a -r -ttar -so dummy [what to archive] | 7za a -tgzip -si [archivename].tar.gz

How to run x64 code under ESX on Dell OptiPlex 755

If you're getting the "0xc000035a" error when trying to install a x64 guest OS under VMWare ESX(i), you can try to to set Trusted Execution (under "Performance" settings in the BIOS) to OFF.