diff --git a/beacon.h b/beacon.h
new file mode 100644
index 0000000..3613159
--- /dev/null
+++ b/beacon.h
@@ -0,0 +1,61 @@
+/*
+ * Beacon Object Files (BOF)
+ * -------------------------
+ * A Beacon Object File is a light-weight post exploitation tool that runs
+ * with Beacon's inline-execute command.
+ *
+ * Cobalt Strike 4.1.
+ */
+
+/* data API */
+typedef struct {
+	char * original; /* the original buffer [so we can free it] */
+	char * buffer;   /* current pointer into our buffer */
+	int    length;   /* remaining length of data */
+	int    size;     /* total size of this buffer */
+} datap;
+
+DECLSPEC_IMPORT void    BeaconDataParse(datap * parser, char * buffer, int size);
+DECLSPEC_IMPORT int     BeaconDataInt(datap * parser);
+DECLSPEC_IMPORT short   BeaconDataShort(datap * parser);
+DECLSPEC_IMPORT int     BeaconDataLength(datap * parser);
+DECLSPEC_IMPORT char *  BeaconDataExtract(datap * parser, int * size);
+
+/* format API */
+typedef struct {
+	char * original; /* the original buffer [so we can free it] */
+	char * buffer;   /* current pointer into our buffer */
+	int    length;   /* remaining length of data */
+	int    size;     /* total size of this buffer */
+} formatp;
+
+DECLSPEC_IMPORT void    BeaconFormatAlloc(formatp * format, int maxsz);
+DECLSPEC_IMPORT void    BeaconFormatReset(formatp * format);
+DECLSPEC_IMPORT void    BeaconFormatFree(formatp * format);
+DECLSPEC_IMPORT void    BeaconFormatAppend(formatp * format, char * text, int len);
+DECLSPEC_IMPORT void    BeaconFormatPrintf(formatp * format, char * fmt, ...);
+DECLSPEC_IMPORT char *  BeaconFormatToString(formatp * format, int * size);
+DECLSPEC_IMPORT void    BeaconFormatInt(formatp * format, int value);
+
+/* Output Functions */
+#define CALLBACK_OUTPUT      0x0
+#define CALLBACK_OUTPUT_OEM  0x1e
+#define CALLBACK_ERROR       0x0d
+#define CALLBACK_OUTPUT_UTF8 0x20
+
+DECLSPEC_IMPORT void   BeaconPrintf(int type, char * fmt, ...);
+DECLSPEC_IMPORT void   BeaconOutput(int type, char * data, int len);
+
+/* Token Functions */
+DECLSPEC_IMPORT BOOL   BeaconUseToken(HANDLE token);
+DECLSPEC_IMPORT void   BeaconRevertToken();
+DECLSPEC_IMPORT BOOL   BeaconIsAdmin();
+
+/* Spawn+Inject Functions */
+DECLSPEC_IMPORT void   BeaconGetSpawnTo(BOOL x86, char * buffer, int length);
+DECLSPEC_IMPORT void   BeaconInjectProcess(HANDLE hProc, int pid, char * payload, int p_len, int p_offset, char * arg, int a_len);
+DECLSPEC_IMPORT void   BeaconInjectTemporaryProcess(PROCESS_INFORMATION * pInfo, char * payload, int p_len, int p_offset, char * arg, int a_len);
+DECLSPEC_IMPORT void   BeaconCleanupProcess(PROCESS_INFORMATION * pInfo);
+
+/* Utility Functions */
+DECLSPEC_IMPORT BOOL   toWideChar(char * src, wchar_t * dst, int max);