Mount the ISO:
Warning: Only possible if your version does not require a 16-bit installer or dongle driver. how to install autodata 3.40 on windows 10
| Error Message | Likely Fix |
|---------------|-------------|
| "Database not found" | Re-run setup and point manually to the database folder (often C:\AutoData340\Data). |
| "Cannot open CD/DVD" | Mount ISO or insert DVD 2 again. |
| "HASP not found" | Reinstall Sentinel driver: haspdinst.exe -install as admin. |
| "Error 5: Access denied" | You didn’t run as administrator. Re-apply compatibility settings. |
| Program opens but shows no tabs (blank screen) | Disable hardware acceleration (look for a .ini file in the installation folder, change UseHardware=1 to 0). | Mount the ISO: