DNS which stands for (domain name system) keeps many type of information about a particular domain and is also responsible for converting IP addresses to easily memorable domain names. DNS lookup can be done easily by online utility mentioned below:

DNS which stands for (domain name system) keeps many type of information about a particular domain and is also responsible for converting IP addresses to easily memorable domain names. DNS lookup can be done easily by online utility mentioned below:

GUID/ UUID which stands for “Globally Unique Identifier” and “Universally Unique Identifier” is a 128-bit integer (16 bytes) that can be used across all computers and networks wherever a unique identifier is required. You can generate GUID’s online online from out web utilities section.
GUID Generator - View Online
Photo Magician is one of the popular batch image / photo converter software. It is a very easy to use program which yoy can use to quickly scale and convert images. It is capable of processing several files at once and create custom conversion profiles. Photo Magician supports all common images formats including BMP, GIF, JPG, PNG and TIFF. It can also handles some special image formats like RAW images, DDS, PCX, PSD, TARGA, WBMP and WMF.

Download Batch Image Converter Software - Photo Magician
Event after tens of years of Windows OS development it seems Microsoft hasn't looked into improving the interface for managing “Environment Variables”. It is still ( Windows 7 ) very similar to the interface available in Windows 98.
AndyHoffmann has developed a nice tool named PathEditor which you can use to manage Environment Variables easily. This tool provides a grid interface to edit different path to be set into Environment Variable;

Download PathEditor - Path Environment Variable Editor for Windows