While invoking EDWinXP, the message “Invalid text to decrypt” pops up. 
Cause
This error mainly occurs when the software is installed and licensed in User mode. Other causes can also arise to create this error.
Solution
1. Install and license EDWinXP in administrative mode.
2. If EDWinXP is not working, select the EDWinXP.exe from the installation folder and choose Run as Administrator
Note: Please always confirm that EDWinXP is installed in Administrative mode.
3. If nothing helped, send us the Product ID with full purchase details of EDWinXP.