Windows Script Component
application/octet-stream
Magic Bytes
Offset: 0
3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E 3D
Windows Script Component (WSC) is an XML-based file format developed by Microsoft for creating COM components using scripting languages such as VBScript or JScript. These files encapsulate logic into reusable objects that can be accessed by applications and scripts throughout the Windows environment. Now a legacy technology, WSC files were historically used for administrative automation and web components before being superseded by more modern development frameworks.
Validation Code
How to validate .wsc files in Python
Python
def is_wsc(file_path: str) -> bool:
"""Check if file is a valid WSC by magic bytes."""
signature = bytes([0x3C, 0x3F, 0x78, 0x6D, 0x6C, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x3D])
with open(file_path, "rb") as f:
return f.read(14) == signatureHow to validate .wsc files in Node.js
Node.js
function isWSC(buffer: Buffer): boolean {
const signature = Buffer.from([0x3C, 0x3F, 0x78, 0x6D, 0x6C, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x3D]);
return buffer.subarray(0, 14).equals(signature);
}
Go
func IsWSC(data []byte) bool {
signature := []byte{0x3C, 0x3F, 0x78, 0x6D, 0x6C, 0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x3D}
if len(data) < 14 {
return false
}
return bytes.Equal(data[:14], signature)
}API Endpoint
GET
/api/v1/wsc
curl https://filesignature.org/api/v1/wsc