Name the  number of other builders for nant, visual studio
CREATE TABLE "table1_22903426_1" (
  "name" text,
  "platform" text,
  "license" text,
  "windows_builders" text,
  "java_builders" text,
  "other_builders" text,
  "scm_system" text,
  "notification" text,
  "ide_integration" text,
  "other_integration" text
);
SELECT COUNT("other_builders") FROM "table1_22903426_1" WHERE "windows_builders"='NAnt, Visual Studio';