There are the following initialization information services:
| Service | Description |
| Convert_Boolean_String | Converts string to a Boolean value. |
| Convert_Decimal_String | Converts a string to a decimal value. |
| Convert_Fixed_Point_String | Converts a string to a fixed-point value. |
| Convert_Hex_String | Converts a string to a hexadecimal value. |
| Get_Config_Directory | Returns to the WINDOWS directory. |
| Get_Environment_String | Returns the value of an environment variable. |
| Get_Exec_Path | Returns the full path of Windows VMM. |
| Get_Machine_Info | Returns machine information. |
| Get_Name_Of_Ugly_TSR | Returns the name of uncooperative TSR. |
| Get_Next_Arena | Returns information about the MS-DOS arena. |
| Get_Next_Profile_String | Returns the value of the next profile string. |
| Get_Profile_Boolean | Returns the value of a Boolean entry. |
| Get_Profile_Decimal_Int | Returns the value of a decimal entry. |
| Get_Profile_Fixed_Point | Returns the value of a fixed-point entry. |
| Get_Profile_Hex_Int | Returns the value of a hexadecimal entry. |
| Get_Profile_String | Returns value of a profile string. |
| Get_PSP_Segment | Returns the segment address of a PSP. |
| GetDOSVectors | Returns original interrupt handler addresses. |
| Locate_Byte_In_ROM | Locates a byte value in system ROM. |
| OpenFile | Opens a file and returns an MS-DOS file handle. |