QTP environmental variables

Hi Every one

Can any one tell me about environmental variables and how to use these variables in QTP ?

Hai friend,

File->Test Settings->Environment tab-> you can see the default environmental variables
select what ever you need.

In script you can use environmental variable like this
C:\Documents and Settings\"&Environment("UserName")&"\Desktop\abc.xls

Through the script given above you can get current username

Thanks
Deepa