user: Question: If the security issues is 99-025 and the distribution mechanism is the Microsoft website, what is the release date total number?
Columns: ['Version', 'Release date', 'Distribution mechanism', 'Features', 'Security issues']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1.5a', 'September 1997–March 1998', 'Microsoft website', 'Service release', '99-025']
SQL:

assistant: SELECT COUNT("Release date") FROM "Table" WHERE "Security issues" = '99-025' AND "Distribution mechanism" = 'Microsoft website';