SSDA-ONLN-AAAA-CJTS-TTNY

1. Uninstall previous version first.

2. Reboot and install this new version.

3. Enter the above serial during installation, but do not start Spy Sweeper after installation.

4. Go to C:\Program Files\Webroot\Spy Sweeper and locate the install.dat file.

5. Open it with a text editor like notepad. Then change "dl=365" to "dl=3650" and save.

6. Right click the the install.dat file and choose "properties", then change it to "hidden" and "read only".

If your subscription service expires then use another serial:

SSDA-ONLN-AAAA-MZWY-HQKR
SSDA-ONLN-AAAA-CHYZ-LEOU
SSDA-ONLN-AAAA-CHTL-WMLK
SSDA-ONLN-AAAA-CHOH-LGCY
SSJQ-ONLN-VCFU-DKYH-YVEZ
SSDA-ONLN-AAAA-CKQV-QINC
SSJD-ONLN-LMTX-FBSE-IWTD
SSWX-ONLN-IIKZ-GPAZ-FCHN
SSBF-ONLN-QVAN-QQVD-RGZX
SSVX-ONLN-VRDP-IGZL-OSBS
SSBH-ONLN-DLQQ-EBBD-BMLK
SSUC-ONLN-ZKWF-ZBBK-PTPW
SSBE-ONLN-QOJE-BXMZ-WSAT
SSUN-ONLN-YETA-FCKJ-MYIG
SSDS-ONLN-JKZN-VONE-QWUC
SSSB-ONLN-YUQI-CZZA-JHUY
SSQG-ONLN-QWNS-LCKC-HZXJ 

Or you can generate one from this keygen:
ed2k://|file|Webroot.SpySweeper.v3.0.0.113.WinALL.Keymaker.And.Patch.Only-CORE.rar|166164|29D2F9412AB1E3CC6F12CF4047A5D66F|/

If you don't ever want to worry about your serial being blacklisted then use the above keymaker and patch with this FOSI release and you will never have any problems:
ed2k://|file|Webroot.Spy.Sweeper.v3.0-FOSI.rar|4886232|D3844324FB58C3521AA880080E69B6E3|/

Thanks jctlau for the retail supply.