I have a windows application that is calling some specific variables, I don't know if they are environment variables, or what exactly they are. examples are clWhite, clRed (obviously colors), clWindow, etc. They all appear to begin with cl.
The application runs just fine in XP, Vista. In Windows 7, when these variables are referenced the application returns a variable undefined error.
Are these variables somehow a part of the XP, VIsta, but not included in Windows 7?
However, this might be easiest to resolve by setting up XP mode in Win7.
The steps to install XP Mode (It's really just Virtual PC with XP wrapped up into a package) are as follows.
1) Check to make sure your CPU can support XP Mode (Virtual XP), and turn on virtualization support in the BIOS. http://www.microsoft.com/windows/virtual-pc/support/configure-bios.aspx
2) Choose the system type, and downloaded Virtual PC and Windows XP Mode beta.
http://www.microsoft.com/windows/virtual-pc/download.aspx
3) Install both of those programs and start playing with XP in Win7.
Now you have Windows XP running on Win7 and you didn't need any CD's or XP licensing keys. Very cool.