On opening Taxsuit software error comes > Data is not compatible with application. Contact your Vendor
Solution:
To resolve the error please follow the steps provided below:

Step 1:
Close the Software. Press [CTRL+ALT+DELETE] then Go to "Task Manager".

Step 2:
Click on "Processes" tab. Select "mysqld-nt.exe" and click on "End Process".

Step 3:
Now, Go to "C:\MySQL" and Save "Data" folder to any safe location.

(Note: - This is the Default Location of Database, if not found at C Drive please check with other Drives.)

Step 4:
Go to " C:\mysql\data\taxsuit" and search the three files named below and delete these files.
- spzen.myi
- spzen.frm
- spzen.myd
Re-open the Software.
This will helps.