Hi,
These should help :
Help with Windows 7 compatibility problems
http://windows.microsoft.com/en-us/windows7/help/compatibility
Make older programs run in this version of Windows
http://windows.microsoft.com/en-us/windows7/make-older-programs-run-in-this-version-of-windows
How to Run a Program in Compatibility Mode in Windows 7
http://www.sevenforums.com/tutorials/316-compatibility-mode.html
Using Windows 7 or Vista Compatibility Mode
http://www.howtogeek.com/howto/windows-vista/using-windows-vista-compatibility-mode/
Open the Program Compatibility troubleshooter
http://windows.microsoft.com/en-US/windows7/Open-the-Program-Compatibility-troubleshooter
Try Compatibility Assistant :
Program Compatibility Assistant: frequently asked questions
How to Enable or Disable Windows 7 Program Compatibility Assistant
http://www.sevenforums.com/tutorials/70829-program-compatibility-assistant-enable-disable.html
Turn Off Program Compatibility Assistant
http://maximumpcguides.com/windows-7/turn-off-program-compatibility-assistant/
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More however the above should be all you need.
If you have Windows 7 Professional, Ultimate, or Enterprise then XP mode is an option.
From a post by Kristan M. Kenney :
"Most applications that were designed for Windows 2000 or Windows XP will still function correctly under all editions of Windows 7, including Home Premium. Some applications check the version number of the operating system and will fail to run if it finds an unexpected version number, therefore Windows 7 has a compatibility mode which allows these types of programs to run correctly.
There is also another compatibility option geared towards IT professionals and business users which is called "Windows XP Mode," which is essentially a fully-licensed copy of Windows XP Professional running inside of a virtual machine and is only available to Windows 7 Professional, Windows 7 Enterprise, and Windows 7 Ultimate users.
Windows XP Mode is meant primarily for companies who have designed their own software in-house which is targeted specifically for a version of software - a prime example of this is a web application that only works in Internet Explorer 6 (which is available with Windows XP, but not with Windows 7).
For more information on application compatibility with Windows 7, please see
http://windows.microsoft.com/en-us/windows7/help/compatibility
and
http://windows.microsoft.com/en-us/windows7/Make-older-programs-run-in-this-version-of-Windows.
For more information on Windows XP Mode, please visit
http://windows.microsoft.com/en-us/windows7/products/features/windows-xp-mode
and
http://windows.microsoft.com/en-us/windows7/install-and-use-windows-xp-mode-in-windows-7 ."
And more : (XP mode requires Professional, Ultimate, or Enterprise.)
Get all the benefits of Windows 7 and continue to leverage your investments in older business and
productivity programs that require a PC running Windows XP. Note: Windows XP Mode requires a
download.
http://www.microsoft.com/windows/windows-7/features/windows-xp-mode.aspx
Windows XP mode
http://www.microsoft.com/windows/virtual-pc/download.aspx
Windows XP Mode is supported through Technet
Technet - Forums - Windows 7 virtualization
http://social.technet.microsoft.com/Forums/en/w7itprovirt/threads
Hope this helps.