Error 27850 - Cisco VPN Client Installation Error

Today I ran across an issue when installing the Cisco VPN Client v5.x on my Windows7 64-bit PC.

The installation would fail and give me an error:
Error 27850: Operating System Corruption May Be Preventing Installation.

I found a great solution posted on another blog and wanted to share.

The Fix: 

1. Open Registry Editor: Type 'regedit' into the Windows Start Menu and browse for program
2. Navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\MaxNumFilters
3. Double-click 'MaxNumFilters' and in ncrease the registry value by 1 (example: if value is 8, change to 9)

Give credit for the answer where due.  Thank this fellow!


Happy VPNing!