Step 1: Add an Exclusion to Windows Defender (Antivirus)
Windows Defender automatically flags and blocks reboot.dll because it is an unsigned patch file used by the software to bypass hardware keys. 1. Click the Start Menu and type Windows Security, then press Enter. 2. Go to Virus & threat protection. 3. Under Virus & threat protection settings, click Manage settings. 4. Scroll down to Exclusions and click Add or remove exclusions. 5. Click Add an exclusion, select Folder, and choose the main directory: E:\APPLICATION\IMMO Universal Decoding 3.5 Delete IMMO OFF ECU\.
Step 2: Restore the Blocked DLL (If Missing or Corrupted)
If Windows has already damaged or deleted the file, you need to bring it back. 1. Go back to Windows Security -> Virus & threat protection. 2. Click on Protection history. 3. Look for recent blocked actions related to reboot.dll or IMMDEC3.EXE. 4. Click on it, select Actions, and choose Allow on device or Restore. Note: If the file is completely corrupted, copy/extract a fresh copy of the software from your original archive (.zip or .rar file) back into that folder while the antivirus is temporarily disabled.
Step 3: Run as Administrator and Set Compatibility Mode
The software was made for older 32-bit systems (Windows XP/7) and fails to allocate memory on modern 64-bit Windows without admin rights. 1. Open the folder E:\APPLICATION\IMMO Universal Decoding 3.5 Delete IMMO OFF ECU\. 2. Right-click on IMMDEC3.EXE and select Properties. 3. Go to the Compatibility tab. 4. Check the box "Run this program in compatibility mode for:" and select Windows XP (Service Pack 3) or Windows 7. 5. Check the box at the bottom: "Run this program as an administrator". 6. Click Apply and then OK.
Step 4: Alternative Solution (Virtual Machine)
If you still get the error after following the steps above, it means your Windows 10/11 security kernel is completely incompatible with this older 3.5 crack method. • The only absolute solution is to download VirtualBox (free), install a virtual machine running Windows XP (32-bit) or Windows 7 (32-bit), and run the IMMO Universal Decoding software inside that safe, isolated environment.
