VB.NET Data Types

Visual Basic type	.NET Runtime type	structure Storage size	Value range
Boolean	System.Boolean	4 bytes	True or False
Byte	System.Byte	1 byte	0 to 255 (unsigned)
Char	System.Char	2 bytes	0 to 65535 (unsigned)
Date	System.DateTime	8 bytes	January 1, 1 CE to December 31, 9999
Decimal	System.Decimal	12 bytes	+/-79,228,162,514,264,337,593,543,950,335 with no decimal point; +/-7.9228162514264337593543950335 with 28 places to the right of the decimal; smallest non-zero number is +/-0.0000000000000000000000000001
Double	System.Double	8 bytes	-1.79769313486231E308 to -4.94065645841247E-324 for negative values; 4.94065645841247E-324 to 1.79769313486232E308 for positive values
Integer	System.Int32	4 bytes	-2,147,483,648 to 2,147,483,647
Long	System.Int64	8 bytes	-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
Object	System.Object (class)	4 bytes	Any type can be stored in a variable of type Object
Short	System.Int16	2 bytes	-32,768 to 32,767
Single	System.Single	4 bytes	-3.402823E38 to -1.401298E-45 for negative values; 1.401298E-45 to 3.402823E38 for positive values
String	System.String (class)	10 bytes + (2 * string length)	0 to approximately two billion Unicode characters
User-Defined Type (structure)	(inherits from System.ValueType)	Sum of the sizes of its members	Each member of the structure has a range determined by its data type and independent of the ranges of the other members

.NET Framework types not available in VB.NET: SByte, UInt16, UInt32, UInt64.

Best Keyboard Shortcuts

Getting used to using your keyboard exclusively and leaving your mouse behind will make you much more efficient at performing any task on any Windows system. I use the following keyboard shortcuts every day:
Windows key + R = Run menu
This is usually followed by:
cmd = Command Prompt
iexplore + "web address" = Internet Explorer
compmgmt.msc = Computer Management
dhcpmgmt.msc = DHCP Management
dnsmgmt.msc = DNS Management
services.msc = Services
eventvwr = Event Viewer
dsa.msc = Active Directory Users and Computers
dssite.msc = Active Directory Sites and Services
Windows key + E = Explorer

ALT + Tab = Switch between windows
ALT, Space, X = Maximize window
CTRL + Shift + Esc = Task Manager
Windows key + Break = System properties
Windows key + F = Search
Windows key + D = Hide/Display all windows
CTRL + C = copy
CTRL + X = cut
CTRL + V = paste
Also don't forget about the "Right-click" key next to the right Windows key on your keyboard. Using the arrows and that key can get just about anything done once you've opened up any program. 

Windows Run Commands

Accessibility Controls - access.cpl
Accessibility Wizard - accwiz
Add Hardware Wizard - hdwwiz.cpl
Add/Remove Programs - appwiz.cpl
Administrative Tools - control admintools
Adobe Acrobat (if installed) - acrobat
Adobe Designer (if installed) - acrodist
Adobe Distiller (if installed) - acrodist
Adobe ImageReady (if installed) - imageready
Adobe Photoshop (if installed) - photoshop
Automatic Updates - wuaucpl.cpl
Bluetooth Transfer Wizard - fsquirt
Calculator - calc
Certificate Manager - certmgr.msc
Character Map - charmap
Check Disk Utility - chkdsk
Clipboard Viewer - clipbrd
Command Prompt - cmd
Component Services - dcomcnfg
Computer Management - compmgmt.msc
Control Panel - control
Date and Time Properties - timedate.cpl
DDE Shares - ddeshare
Device Manager - devmgmt.msc
Direct X Control Panel (If Installed)* - directx.cpl
Direct X Troubleshooter - dxdiag
Disk Cleanup Utility - cleanmgr
Disk Defragment - dfrg.msc
Disk Management - diskmgmt.msc
Disk Partition Manager - diskpart
Display Properties - control desktop
Display Properties - desk.cpl
Display Properties (w/Appearance Tab Preselected) - control color
Dr. Watson System Troubleshooting Utility - drwtsn32
Driver Verifier Utility - verifier

Best Rapidshare Download Manager for Free Users

RapidShare Plus 3.1

This is a program that downloads a queue of Rapidshare links.

1. Just add them or use the paste function.
2. Select the folder to download to.
3. Sit back and watch it download automatically.