Example filenames:

 * php_mongo-1.4.5-5.5-nts-vc11-x86.zip
 * php_mongo-1.4.5-5.5-ts-vc11-x86.zip
 * php_mongo-1.4.5-5.5-nts-vc11-x64.zip
 * php_mongo-1.4.5-5.5-ts-vc11-x64.zip
 * php_mongo-1.4.5-5.4-nts-vc9-x86.zip
 * php_mongo-1.4.5-5.4-ts-vc9-x86.zip
 * php_mongo-1.4.5-5.3-nts-vc9-x86.zip
 * php_mongo-1.4.5-5.3-ts-vc9-x86.zip

Would `php_mongo-VERSION.dll` be more straightforward? There's a lot of variation between the PHP, TS/NTS, and VC++ versions.