| Value Name | Type | Data (Example) |
|------------|--------------|-----------------------------------------------------|
| Key | REG_SZ | TC7F-1A2B-3C4D-5E6F-789G-H0IJ (25-29 chars typical) |
No other values are required for standard licensing.
For IT administrators managing hundreds of machines, manually entering keys is impossible. The solution is silent deployment using .reg files or PowerShell.
| Symptom | Likely Cause | Solution | |-----------------------------------------|---------------------------------------------|--------------------------------------------------------------------------| | Think-Cell opens in trial mode | Key missing, wrong path, or typo | Verify registry path and key value. Restart Office. | | Error: “License key invalid” | Incorrect key format or expired key | Re-enter exact key from vendor. Check for leading/trailing spaces. | | Key present but not recognized | Installed Think-Cell version too old | Update Think-Cell to version matching key format. | | Registry path missing after install | Installation failed or incomplete | Reinstall Think-Cell, then add key. | | Multi-user terminal server issues | Key not in HKLM (accidentally in HKCU) | Move key to HKLM. Think-Cell only checks HKLM for licensed mode. |
If you need to locate or remove think-cell license key entries from the Windows Registry (for troubleshooting, transferring a license, or preparing a clean reinstall), follow these steps carefully. Editing the registry can break applications or Windows if done incorrectly — back up the registry and any important data before proceeding.
❌ Using HKLM – Think-Cell does not read from HKLM. Don’t bother.
❌ Extra spaces – The license key must be contiguous. No line breaks.
❌ Per-machine install, per-user license – Even with MSI installed for all users, each user still needs their own registry key.
❌ Registry redirection (WOW64) – On 64-bit Windows, 32-bit Think-Cell reads from the 32-bit registry view under HKEY_CURRENT_USER\Software\Wow6432Node\Think-Cell\License. Wait – actually, no. Think-Cell correctly uses RegQueryValueEx without redirection flags. But if you’re injecting from a 64‑bit process, it still ends up in the same logical HKCU location. Test first.
