For Windows Vista SP2 user, please read this link
You need to install the Windows update mentioned in the Resolution section, then myTaxExpress software setup file can be run.
If there is still problem in running myTaxExpress software. Please do the following:
1) right click on taxexp16.exe after you download/unzip it from website, then choose "property"
2) select "run as administrator" and "windows xp sp3 compatibility mode"
3) click OK to apply the settings,
4) run taxexp16.exe again
Contact us if there is any issue.