Two SAS AF Utilities: LogFilter and Format Viewer
Nice to have (and easy to follow, both tested in Windows 7 with SAS 9.3M1 while they were both written in lower version of SAS):
1. LogFilter: a SAS log checker by rtsl
http://www.ratcliffe.co.uk/rest_logfilt.htm
2. A SAS format viewer by Frank Poppe
http://frank-poppe.xs4all.nl/SAS/edit_format.html